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Symplocos panamensis     Kelly, Lawrence M., Almeda, Frank & Fritsch, Peter W., 2016, A taxonomic revision of Mexican and Central American Symplocos (Symplocaceae), Phytotaxa 264 (1), pp. 448-450 : 448-450 448-450
Miconia laxivenula   comb. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 85-90 85-90
Miconia approximata   nom. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 51-57 51-57
Oospila albipunctulata     Lindt, Aare, Hausmann, Axel & Viidalepp, Jaan, 2018, Review of some species groups of the genus Oospila Warren, with descriptions of nine new species (Lepidoptera: Geometridae: Geometrinae), Zootaxa 4497 (2), pp. 151-194 : 172-173 172-173
Banyallarga (Histricoverpa) fortuna     Prather Table Of Contents, Aysha L., 2004, Revision of the Neotropical caddisfly genus Banyallarga (Trichoptera: Calamoceratidae), Zootaxa 435 (1), pp. 1-76 : 26-27 26-27
Polyplectropus denticulus     Chamorro, Maria Lourdes & Holzenthal, Ralph W., 2010, 2582, Zootaxa 2582, pp. 1-252 : 204-206 204-206
Xylocopa (Neoxylocopa) frontalis     Mérida-Rivas, Jorge A., Hinojosa-Díaz, Ismael A., Ayala-Barajas, Ricardo, Pozo, Carmen & Vandame, Rémy, 2022, Revision of carpenter bees of the subgenus Neoxylocopa Michener (Hymenoptera: Apidae) from Mexico and Mesoamerica, Zootaxa 5158 (1), pp. 1-67 : 17-22 17-22
Absonemobius alatus     Desutter-Grandcolas, Laure & Hugel, Sylvain, 2016, First occurrence of Nemobiinae crickets in the Lesser Antilles (Orthoptera, Grylloidea, Trigonidiidae), with the descriptions of three new species, Zootaxa 4168 (2), pp. 313-326 : 321-322 321-322
Crematogaster jardinero   NEW SPECIES  Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150 : 75-78 75-78
Galeopsomyia wilsonae   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 470-471 470-471
Galeopsomyia alas   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 64-65 64-65
Odontocheila iodopleura     Moravec, Jiří, Brzoska, David & Huber, Ronald, 2017, Taxonomic and nomenclatorial revision within the Neotropical genera of the subtribe Odontocheilina W. Horn in a new sense — 18. Six Mexican and Central American species related to Odontocheila mexicana Laporte de Castelnau and O. ignita Chaudoir, with a description of O. potosiana sp. nov., Zootaxa 4231 (4), pp. 451-499 : 471-480 471-480
Embates pseudobumbraticus   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Platycesta depressa   comb. nov.  Viswajyothi, Keezhpattillam & Clark, Shawn M., 2021, A New Genus to Accommodate Central and South American Beetles with Broadly Explanate Elytra, Formerly Assigned to Monocesta Clark and Coelomera Chevrolat (Coleoptera: Chrysomelidae: Galerucinae: Galerucini), The Coleopterists Bulletin 75 (2), pp. 473-484 : 474-483 474-483
Megalota simpliciana   sp. nov.  Brown, John W., 2009, The discovery of Megalota in the Neotropics, with a revision of the New World species (Lepidoptera: Tortricidae: Olethreutini), Zootaxa 2279 (1), pp. 1-50 : 19-20 19-20
Diplosynapsis fisheri   sp. nov.  Vieira, Rodrigo & Rafael, José Albertino, 2016, Revision of Diplosynapsis Enderlein, 1914 (Diptera, Asilidae, Asilinae) with description of four new species, Zootaxa 4208 (2), pp. 127-148 : 137-138 137-138
Cheiloneurus origo   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 342-344 342-344
Diglyphomorphomyia pedunculata   sp. nov.  Hansson, Christer, 2022, Diglyphomorphomyia Girault (Chalcidoidea: Eulophidae) new to the Neotropical region including nine new species, Zootaxa 5141 (4), pp. 321-340 : 332-334 332-334
Azteca nigricans     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 40-41 40-41
Lachnomyrmex grandis     Feitosa, R. M. & Brandão, C. R. F., 2008, A taxonomic revision of the Neotropical myrmicine ant genus Lachnomyrmex Wheeler (Hymenoptera: Formicidae), Zootaxa 1890, pp. 1-49 : 15-17 15-17
Melaloncha punctifrons     Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 15-16 15-16
Cheiloneurus miranda   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 274-276 274-276
Melaloncha gomezi   sp. nov.  Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 51-52 51-52
Bothriomyrmex paradoxus   sp. nov.  Dubovikov, D. A. & Longino, J. T., 2004, A new species of the genus Bothriomyrmex Emery, 1869 (Hymenoptera: Formicidae: Dolichoderinae) from Costa Rica., Zootaxa 776, pp. 1-10 : 3-8 3-8
Mahencyrtus nitidus     Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 158-159 158-159
Myrmelachista longiceps   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 33-36 33-36
Azteca beltii     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 21-22 21-22
Pheidole     Ulysséa, Mônica Antunes, Prado, Lívia P. & Brandão, Carlos Roberto F., 2015, Type specimens of the traditional Myrmicinae (Hymenoptera: Formicidae) ant tribes deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil: Adelomyrmecini, Basicerotini, Blepharidatt ini, Crematogastrini, Formicoxenini, Lenomyrmecini, Myrmicini, Phalacromyrmecini, Pheidolini, Stegomyrmecini, Stenammini and Tetramoriini, Papéis Avulsos de Zoologia (São Paulo) 55 (12), pp. 175-204 : 187-190 187-190
Miconia albertobrenesii   nom. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 41-46 41-46
Myrmelachista flavocotea   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 17-19 17-19
Azteca sericeasur   new species  Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 46-48 46-48
Crematogaster foliocrypta   NEW SPECIES  Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150 : 73-75 73-75
Embates cordiger   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Couepia hallwachsiae   sp. nov.  Santamaria-Aguilar, Daniel & Lagomarsino, Laura. P., 2015, Synopsis of Couepia (Chrysobalanaceae) in Costa Rica, with a description of two new species, Phytotaxa 233 (1), pp. 69-79 : 70-72 70-72
Miconia magnifolia   nom. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 91-95 91-95
Myrmelachista plebecula     Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 43-46 43-46
Argia calverti   sp. nov.  Garrison, Rosser W. & Ellenrieder, Natalia Von, 2017, New species of the damselfly genus Argia from Mexico, Central America and Ecuador with an emphasis on Costa Rica (Insecta: Odonata: Coenagrionidae), Zootaxa 4235 (1), pp. 1-93 : 6-10 6-10
Embates polymorphus subsp. altrimsecus   subsp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Estoloides perforata     Santos-Silva, Antonio, Wappes, James E. & Galileo, Maria Helena M., 2018, Descriptions and synonymies in American Desmiphorini (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 4375 (4), pp. 451-501 : 453-454 453-454
Alobevania gattiae   n. sp.  Deans, A. R. & Kawada, R., 2008, Alobevania, a new genus of neotropical ensign wasps (Hymenoptera: Evaniidae), with three new species: integrating taxonomy with the World Wide Web., Zootaxa 1787, pp. 28-44 : 4-9 4-9
Cacostola plotkini   sp. nov.  Wappes, James E. & Santos-Silva, Antonio, 2019, New species and taxonomic notes for Cacostola Fairmaire and Germain, 1859 (Coleoptera: Cerambycidae: Lamiinae: Onciderini), Insecta Mundi 741 (741), pp. 1-20 : 2-3 2-3
Osoriellus trinitatis key  comb. nov.  Irmler, Ulrich, 2014, The Neotropical species of the genus Osoriellus FAGEL, 1959 (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 64 (2), pp. 231-354 : 308-310 308-310
Microzygops nigrofasciatus     Hespenheide, Henry A., 2018, A Review of Microzygops Champion, 1906 (Coleoptera: Curculionidae: Conoderinae), with Description of a New Species, The Coleopterists Bulletin 72 (1), pp. 113-117 : 113-116 113-116
Embates paludicola   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Azteca instabilis     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 35-37 35-37
Syringogaster brunneina   sp. nov.  Marshall, S. A., Buck, M., Skevington, J. H. & Grimaldi, D., 2009, A revision of the family Syringogastridae (Diptera: Diopsoidea), Zootaxa 1996 (1), pp. 1-80 : 30-35 30-35
Floromadane pictulus   sp. nov.  Prena, Jens, 2009, Floromadane, a new genus of baridine weevils associated with Rubiaceae in Costa Rica and Panama (Coleoptera: Curculionidae: Baridinae), Beiträge Zur Entomologie = Contributions to Entomology 59 (1), pp. 239-246 : 245 245
Embates clandestinus   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Dazollina petilunca   sp. nov.  Sanborn, Allen F., 2018, Two new genera and two new species of cicadas from Central America (Hemiptera: Cicadidae: Cicadinae), Zootaxa 4418 (2), pp. 149-160 : 151-154 151-154
Embates leucopleura subsp. discolor   subsp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Embates discordabilis   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Hypoxys eburatulus   comb. nov.  Nunes, Benedito Mendes, Campos, Lourival Dias, Mendonca, Maria Thayane Da Silva, Cunha, Eduardo Victor De Paiva & Fernandes, Jose Antonio Marin, 2020, Revision of Hypoxys Amyot & Serville, 1843 stat. rest. (Heteroptera Pentatomidae), Zootaxa 4742 (3), pp. 401-441 : 413-414 413-414
Embates burgeri   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Costarina superplena   sp. nov.  Platnick, Norman I., Berniker, Lily & Víquez, Carlos, 2014, The Goblin Spider Genus Costarina (Araneae, Oonopidae), Part 2: the Costa Rican fauna, American Museum Novitates 2014 (3794), pp. 1-76 : 4-5 4-5
Megalota spinulosa   sp. nov.  Brown, John W., 2009, The discovery of Megalota in the Neotropics, with a revision of the New World species (Lepidoptera: Tortricidae: Olethreutini), Zootaxa 2279 (1), pp. 1-50 : 17-19 17-19
Beltia nicaraguensis     Flowers, R. Wills, 2018, A review of the genus Beltia Jacoby (Chrysomelidae: Eumolpinae: Eumolpini), with descriptions of fourteen new species from Costa Rica, Panama, and northwestern South America, Insecta Mundi 672, pp. 1-43 : 16-17 16-17
Megalota delphinosema   comb. nov.  Brown, John W., 2009, The discovery of Megalota in the Neotropics, with a revision of the New World species (Lepidoptera: Tortricidae: Olethreutini), Zootaxa 2279 (1), pp. 1-50 : 20-21 20-21
Paragrallomyia nodulosa   sp. nov.  Ferro, Gustavo Borges & Marshall, Stephen A., 2020, A redefinition of Paragrallomyia Hendel (Diptera: Micropezidae, Taeniapterinae) and a revision of the P. albibasis complex, Zootaxa 4822 (1), pp. 39-70 : 57-58 57-58
Bothriomyrmex paradoxus     Matthew Prebus & David Lubertazzi, 2016, A new species of the ant genus Bothriomyrmex Emery, 1869 (Hymenoptera: Formicidae) from the Caribbean region, European Journal of Taxonomy 211, pp. 1-12 : 9 9
Heterochele actias   sp. nov.  Viswajyothi, Keezhpattillam & Clark, Shawn M., 2021, A new genus and two new species of Galerucinae from Costa Rica (Coleoptera: Chrysomelidae), Journal of Natural History 54 (47 - 48), pp. 3103-3119 : 3113-3116 3113-3116
Megaloprepus caerulatus     Feindt, Wiebke & Hadrys, Heike, 2022, The damselfly genus Megaloprepus (Odonata: Pseudostigmatidae): Revalidation and delimitation of species-level taxa including the description of one new species, Zootaxa 5115 (4), pp. 487-510 : 498-500 498-500
Punjuba racemiflora     Soares, Marcos Vinicius Batista, Guerra, Ethiéne, Morim, Marli Pires & Iganci, João Ricardo Vieira, 2024, Taxonomic revision of the genus Punjuba (Leguminosae, Caesalpinioideae), Phytotaxa 659 (1), pp. 41-55 : 51-53 51-53
Lachnomyrmex laticeps   new species  Feitosa, R. M. & Brandão, C. R. F., 2008, A taxonomic revision of the Neotropical myrmicine ant genus Lachnomyrmex Wheeler (Hymenoptera: Formicidae), Zootaxa 1890, pp. 1-49 : 19-21 19-21
Azotoctla femorata     Cardona-Duque, Juliana & Franz, Nico M., 2012, Description and phylogeny of a new Neotropical genus of Acalyptini (Coleoptera: Curculionidae: Curculioninae) associated with the staminodes of Cyclanthaceae, Zoological Journal of the Linnean Society 166 (3), pp. 559-623 : 594-599 594-599
Pedinotus columbianus     Belokobylskij, Sergey A., Castro, Clóvis Sormus De, Shimbori, Eduardo Mitio, Zaldívar-Riverón, Alejandro, Penteado-Dias, Angélica Maria & Braet, Yves, 2017, Taxonomic revision of the Neotropical species of the braconid wasp genus Pedinotus Szépligeti, 1902 (Hymenoptera: Braconidae: Doryctinae), Zootaxa 4327 (1), pp. 1-102 : 25-30 25-30
Azteca nigra   new status  Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 38-40 38-40
Aulacus heredia   sp. nov.  Smith, David R., 2008, Aulacidae of the southwestern United States, Mexico, and Central America (Hymenoptera), Beiträge Zur Entomologie = Contributions to Entomology 58 (2), pp. 267-355 : 284-285 284-285
Triaeris stenaspis     Platnick, Norman I., Dupérré, Nadine, Ubick, Darrell & Fannes, Wouter, 2012, Got Males?: The Enigmatic Goblin Spider Genus Triaeris (Araneae, Oonopidae), American Museum Novitates 2012 (3756), pp. 1-36 : 22-30 22-30
Azteca quadraticeps   new species  Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 45-46 45-46
Adelomyrmex longinoi   NEW SPECIES  Fernández, F., 2003, Revision of the myrmicine ants of the Adelomyrmex genus-group (Hymenoptera: Formicidae)., Zootaxa 361, pp. 1-52 : 21-22 21-22
Azteca gnava     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 34-35 34-35
Adelius panamensis   sp. nov.  Shimbori, Eduardo M., Bortoni, Marco A., Shaw, Scott R., Souza-Gessner, Carolina Da S., Cerântola, Paula De C. M. & Penteado-Dias, Angélica M., 2019, Revision of the New World genera Adelius Haliday and Paradelius de Saeger (Hymenoptera: Braconidae: Cheloninae: Adeliini), Zootaxa 4571 (2), pp. 151-200 : 184-185 184-185
Embates crinipes   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Azteca tonduzi     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 49 49
Adelomyrmex myops     Fernández, F., 2003, Revision of the myrmicine ants of the Adelomyrmex genus-group (Hymenoptera: Formicidae)., Zootaxa 361, pp. 1-52 : 24-26 24-26
Adelomyrmex silvestrii     Fernández, F., 2003, Revision of the myrmicine ants of the Adelomyrmex genus-group (Hymenoptera: Formicidae)., Zootaxa 361, pp. 1-52 : 28-29 28-29
Myrmelachista nigrocotea   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 40-42 40-42
Adelomyrmex tristani     Fernández, F., 2003, Revision of the myrmicine ants of the Adelomyrmex genus-group (Hymenoptera: Formicidae)., Zootaxa 361, pp. 1-52 : 30-33 30-33
Paragrallomyia citrina   sp. nov.  Ferro, Gustavo Borges & Marshall, Stephen A., 2020, A redefinition of Paragrallomyia Hendel (Diptera: Micropezidae, Taeniapterinae) and a revision of the P. albibasis complex, Zootaxa 4822 (1), pp. 39-70 : 51-52 51-52
Paragrallomyia bifurcata   sp. nov.  Ferro, Gustavo Borges & Marshall, Stephen A., 2020, A redefinition of Paragrallomyia Hendel (Diptera: Micropezidae, Taeniapterinae) and a revision of the P. albibasis complex, Zootaxa 4822 (1), pp. 39-70 : 48-49 48-49
Bauhinia beguinotii     Juárez, Pedro, Flores, Rodolfo & Blanco, Mario A., 2018, Bauhinia proboscidea (Fabaceae: Cercidoideae), a new species from Costa Rica and Panama, with notes on B. beguinotii, B. gorgonae and B. pansamalana, Phytotaxa 361 (1), pp. 25-40 : 34-35 34-35
Heteragrion albifrons     Vilela, Diogo Silva, Lencioni, Frederico A. A., Bota-Sierra, Cornelio A., Ware, Jessica L. & Bispo, Pitágoras C., 2023, Taxonomic revision of the Neotropical genus Heteragrion Selys, 1862 (Zygoptera: Heteragrionidae): male morphology, new species and illustrated key, Zootaxa 5356 (1), pp. 1-96 : 19 19
Miconia evanescens   comb. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 76-80 76-80
Cyathea divergens var. divergens     Lehnert, Marcus, 2014, Do you know Cyathea divergens (Cyatheaceae-Polypodiopsida)?, Phytotaxa 161 (1), pp. 1-42 : 10-39 10-39
Lindsaea angustipinna   sp. nov.  Rojas-Alvarado, Alexander Francisco & Tejero-Díez, José Daniel, 2017, Novelties and notes in Lindsaea (Lindsaeaceae) from Mexico and Central America, Phytotaxa 296 (2), pp. 147-160 : 149-150 149-150
Gonatocerus (Gastrogonatocerus) membraciphagus     Triapitsyn, Serguei V., Huber, John T., Logarzo, Guillermo A., Berezovskiy, Vladimir V. & Aquino, Daniel A., 2010, Review of Gonatocerus (Hymenoptera: Mymaridae) in the Neotropical region, with description of eleven new species, Zootaxa 2456, pp. 1-243 : 68-71 68-71
Eurhopalothrix     Ulysséa, Mônica Antunes, Prado, Lívia P. & Brandão, Carlos Roberto F., 2015, Type specimens of the traditional Myrmicinae (Hymenoptera: Formicidae) ant tribes deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil: Adelomyrmecini, Basicerotini, Blepharidatt ini, Crematogastrini, Formicoxenini, Lenomyrmecini, Myrmicini, Phalacromyrmecini, Pheidolini, Stegomyrmecini, Stenammini and Tetramoriini, Papéis Avulsos de Zoologia (São Paulo) 55 (12), pp. 175-204 : 179-180 179-180
Leptocera fulva     Buck, Matthias & Marshall, Stephen A., 2009, Revision of New World Leptocera Olivier (Diptera, Sphaeroceridae), Zootaxa 2039 (1), pp. 1-139 : 104-107 104-107
Myrmelachista haberi   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 23-25 23-25
Perittonannus   gen. nov.  Weirauch, Christiane, Knyshov, Alexander & Hoey-Chamberlain, Rochelle, 2020, Four new genera of Schizopteridae (Hemiptera: Heteroptera) from theAfrotropical and Neotropical regions, Zootaxa 4768 (1), pp. 95-111 : 106-110 106-110
Anisopodus scriptipennis     Santos-Silva, Antonio & Devesa, Sergio, 2021, New species and new records in American Acanthocinini (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 4942 (4), pp. 569-582 : 576 576
Mesembrinella zurquiensis   sp. nov.  Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 108-109 108-109
Myrmelachista zeledoni     Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 46-48 46-48
Ponsoonops samadam   sp. nov.  Bolzern, Angelo, 2014, The Neotropical goblin spiders of the new genera Ponsoonops and Bipoonops (Araneae, Oonopidae), American Museum Novitates 2014 (3803), pp. 1-1 : 1--1 1--1
Mesembrinella spicata     Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 55-56 55-56
Embates todillofasciatus   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Temnocerus cyaneus   sp. nov.  Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 11-13 11-13
Helonoton tico   sp. nov.  Lord, Nathan P. & Ivie, Michael A., 2016, Several New Genera and Species of New World Synchitini (Coleoptera: Zopheridae: Colydiinae), The Coleopterists Bulletin 70 (4), pp. 715-753 : 715-753 715-753
Miconia alboglandulosa   nom. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 46-49 46-49
Lachnomyrmex     Ulysséa, Mônica Antunes, Prado, Lívia P. & Brandão, Carlos Roberto F., 2015, Type specimens of the traditional Myrmicinae (Hymenoptera: Formicidae) ant tribes deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil: Adelomyrmecini, Basicerotini, Blepharidatt ini, Crematogastrini, Formicoxenini, Lenomyrmecini, Myrmicini, Phalacromyrmecini, Pheidolini, Stegomyrmecini, Stenammini and Tetramoriini, Papéis Avulsos de Zoologia (São Paulo) 55 (12), pp. 175-204 : 191-192 191-192
Phaenostoma posticatum     Gustafson, Grey T. & Short, Andrew E. Z., 2010, Redescription of the Neotropical water scavenger beetle genus Phaenostoma (Coleoptera: Hydrophilidae) with description of two new species, Acta Entomologica Musei Nationalis Pragae (suppl.) 50 (2), pp. 459-469 : 465-466 465-466
Guapinannus minutus   sp. nov.  Frankenberg, Sarah, Knyshov, Alexander, Hoey-Chamberlain, Rochelle & Weirauch, Christiane, 2021, Taxonomic revision of Guapinannus Wygodzinsky, 1951 (Hemiptera: Schizopteridae), with description of 19 new species, Zootaxa 4958 (1), pp. 261-286 : 273-274 273-274
Amphicnaeia rileyi   sp. nov.  Wappes, James E., Santos-Silva, Antonio & Galileo, Maria Helena M., 2019, Synonymies, a new combination, and four new species in Amphicnaeia Bates (Coleoptera: Cerambycidae: Lamiinae), Insecta Mundi 703 (703), pp. 1-18 : 7-8 7-8
Galeopsomyia maculifer   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 368-369 368-369
Myrmelachista joycei   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 25-28 25-28
Laneella purpurea   sp. nov.  Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 42-43 42-43
Temnothorax nebliselva   sp. nov .  Prebus, Matthew M., 2021, Taxonomic revision of the Temnothorax salvini clade (Hymenoptera: Formicidae), with a key to the clades of New World Temnothorax, PeerJ (e 11514) 9, pp. 1-462 : 159-165 159-165
Hylomyrma montana     Ulysséa, Mônica Antunes, 2021, Taxonomic revision of the Neotropical ant genus Hylomyrma Forel, 1912 (Hymenoptera: Formicidae: Myrmicinae), with the description of fourteen new species, Zootaxa 5055 (1), pp. 1-137 : 83-86 83-86
Hygronemobius elegans   comb. nov.  Desutter-Grandcolas, Laure & Hugel, Sylvain, 2016, First occurrence of Nemobiinae crickets in the Lesser Antilles (Orthoptera, Grylloidea, Trigonidiidae), with the descriptions of three new species, Zootaxa 4168 (2), pp. 313-326 : 323 323
Leptocera sphaerotheca   sp. nov.  Buck, Matthias & Marshall, Stephen A., 2009, Revision of New World Leptocera Olivier (Diptera, Sphaeroceridae), Zootaxa 2039 (1), pp. 1-139 : 57-61 57-61
Galeopsomyia elegans   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 174-175 174-175
Coprophanaeus     Edmonds, W. D. & Zidek, J., 2010, A taxonomic review of the neotropical genus Coprophanaeus Olsoufieff, 1924 (Coleoptera: Scarabaeidae, Scarabaeinae), Insecta Mundi 2010 (129), pp. 1-111 : 71-73 71-73
Galeopsomyia illydris   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 332-334 332-334
Galeopsomyia milagra   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 389-390 389-390
Galeopsomyia baldosa   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 243-244 243-244
Galeopsomyia fucata   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 105-106 105-106
Galeopsomyia meleadis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 383-384 383-384
Galeopsomyia nigricans   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 412-413 412-413
Galeopsomyia asilis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 486-487 486-487
Xylocopa (Neoxylocopa) ocellaris     Mérida-Rivas, Jorge A., Hinojosa-Díaz, Ismael A., Ayala-Barajas, Ricardo, Pozo, Carmen & Vandame, Rémy, 2022, Revision of carpenter bees of the subgenus Neoxylocopa Michener (Hymenoptera: Apidae) from Mexico and Mesoamerica, Zootaxa 5158 (1), pp. 1-67 : 30-32 30-32
Schildia microthorax     Dikow, Torsten & Bayless, Keith M., 2009, Taxonomic revision of the genus Schildia Aldrich, 1923 (Diptera: Asilidae: Leptogastrinae) with the description of new extant and extinct species, Insect Systematics & Evolution 40, pp. 253-289 : 280-282 280-282
Stelis luz-marinae   sp. nov.  Rojas-Alvarado, Gustavo, 2023, A new species of Stelis subgen. Unciferia (Orchidaceae: Pleurothallidinae) from Costa Rica, Phytotaxa 607 (3), pp. 205-212 : 206-211 206-211
Microctonus cappilicrus   sp. nov.  Pucci, Thomas M., 2013, Contributions to the classification of North American Microctonus (Braconidae, Euphorinae), Zootaxa 3725 (1), pp. 1-150 : 14-15 14-15
Teramocerus     Mantilleri, Antoine, 2015, What is Teramocerus Schoenherr, 1840? A new definition from revision and phylogeny of the group (Insecta, Coleoptera, Brentidae), Zoosystema 37 (2), pp. 285-322 : 287-297 287-297
Xylocopa (Neoxylocopa) nautlana     Mérida-Rivas, Jorge A., Hinojosa-Díaz, Ismael A., Ayala-Barajas, Ricardo, Pozo, Carmen & Vandame, Rémy, 2022, Revision of carpenter bees of the subgenus Neoxylocopa Michener (Hymenoptera: Apidae) from Mexico and Mesoamerica, Zootaxa 5158 (1), pp. 1-67 : 22-26 22-26
Zelus panamensis   sp. n.  Zhang, Guanyang, Hart, Elwood R & Weirauch, Christiane, 2016, A taxonomic monograph of the assassin bug genus Zelus Fabricius (Hemiptera: Reduviidae): 71 species based on 10,000 specimens, Biodiversity Data Journal 4, pp. 8150-8150 : 8150 8150
Zelus panamensis   sp. n.  Zhang, Guanyang, Hart, Elwood R & Weirauch, Christiane, 2016, A taxonomic monograph of the assassin bug genus Zelus Fabricius (Hemiptera: Reduviidae): 71 species based on 10,000 specimens, Biodiversity Data Journal 4, pp. 8150-8150 : 8150 8150
Orasema masonicki   sp. nov.  Baker, Austin J. & Heraty, John M., 2020, The New World ant parasitoid genus Orasema (Hymenoptera: Eucharitidae), Zootaxa 4888 (1), pp. 1-84 : 68-70 68-70
Specklinia tirimbina   sp. nov.  Karremans, Adam, Salguero, Grettel, Bogarín, Diego, Oses, Lizbeth & Cedeño-Fonseca, Marco, 2020, Illustrations and studies in Neotropical Orchidaceae: the Specklinia brighamii group (Pleurothallidinae) in Costa Rica, Phytotaxa 447 (1), pp. 16-30 : 27-29 27-29
Couepia janzenii   sp. nov.  Santamaria-Aguilar, Daniel & Lagomarsino, Laura. P., 2015, Synopsis of Couepia (Chrysobalanaceae) in Costa Rica, with a description of two new species, Phytotaxa 233 (1), pp. 69-79 : 73-75 73-75
Polyplectropus alleni     Chamorro, Maria Lourdes & Holzenthal, Ralph W., 2010, 2582, Zootaxa 2582, pp. 1-252 : 146-148 146-148
Mortoniella stilula   sp. nov.  Blahnik, Roger J. & Holzenthal, Ralph W., 2008, Revision of the Mexican and Central American species of Mortoniella (Trichoptera: Glossosomatidae: Protoptilinae), Zootaxa 1711 (1), pp. 1-72 : 58 58
Cupania moralesii   sp. nov.  Jiménez, José Esteban, Juárez, Pedro & Chaves-Fallas, José Miguel, 2016, Cupania moralesii (Sapindaceae), a new endemic tree species from the premontane forest of Costa Rica, Phytotaxa 275 (1), pp. 69-74 : 71-73 71-73
Anacroneuria exquisita     Stark, Bill P., 2014, Records Of Mesoamerican Anacroneuria (Plecoptera: Perlidae), With Descriptions Of Four New Species, Illiesia 10 (2), pp. 6-16 : 8 8
Anacroneuria benedettoi     Stark, Bill P., 2014, Records Of Mesoamerican Anacroneuria (Plecoptera: Perlidae), With Descriptions Of Four New Species, Illiesia 10 (2), pp. 6-16 : 8 8
Anacroneuria planicollis     Stark, Bill P., 2014, Records Of Mesoamerican Anacroneuria (Plecoptera: Perlidae), With Descriptions Of Four New Species, Illiesia 10 (2), pp. 6-16 : 12-13 12-13
Diochus schuelkei   sp. nov.  Irmler, Ulrich, 2017, A review of the Neotropical genus Diochus ERICHSON, 1840 (Coleoptera: Staphylinidae: Staphylininae), Beiträge Zur Entomologie = Contributions to Entomology 67 (1), pp. 1-62 : 16-18 16-18
Homalopoda aibeus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 63-65 63-65
Anacroneuria ventana     Stark, Bill P., 2014, Records Of Mesoamerican Anacroneuria (Plecoptera: Perlidae), With Descriptions Of Four New Species, Illiesia 10 (2), pp. 6-16 : 14 14
Ponsoonops bilzi   sp. nov.  Bolzern, Angelo, 2014, The Neotropical goblin spiders of the new genera Ponsoonops and Bipoonops (Araneae, Oonopidae), American Museum Novitates 2014 (3803), pp. 1-1 : 1--1 1--1
Anacroneuria magnirufa     Stark, Bill P., 2014, Records Of Mesoamerican Anacroneuria (Plecoptera: Perlidae), With Descriptions Of Four New Species, Illiesia 10 (2), pp. 6-16 : 10 10
Polaszekius nemesis   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 533-535 533-535
Cheiloneurus fabius   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 281-283 281-283
Dalek jigas   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 648-650 648-650
Cheiloneurus varablus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 249-251 249-251
Angebra harpalyke   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 187-189 187-189
Rasopone pluviselva   sp. nov.  Longino, John T. & Branstetter, Michael G., 2020, Phylogenomic Species Delimitation, Taxonomy, and ‘ Bird Guide’ Identification for the Neotropical Ant Genus Rasopone (Hymenoptera: Formicidae), Insect Systematics and Diversity 4 (2), No. 1, pp. 1-33 : 25-26 25-26
Protoptila jolandae   sp. nov.  Holzenthal, Ralph W. & Blahnik, Roger J., 2006, The caddisfly genus Protoptila in Costa Rica (Trichoptera: Glossosomatidae), Zootaxa 1197, pp. 1-37 : 19-24 19-24
Specklinia simmleriana     Karremans, Adam, Salguero, Grettel, Bogarín, Diego, Oses, Lizbeth & Cedeño-Fonseca, Marco, 2020, Illustrations and studies in Neotropical Orchidaceae: the Specklinia brighamii group (Pleurothallidinae) in Costa Rica, Phytotaxa 447 (1), pp. 16-30 : 25-27 25-27
Cheiloneurus genys   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 278-280 278-280
Tico sinabelus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 161-162 161-162
Cheiloneurus catreta   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 237-239 237-239
Cheiloneurus hamadryas   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 265-267 265-267
Cheiloneurus idifex   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 418-420 418-420
Simopelta anomma   sp. nov.  Fernandes, Itanna O., Souza, Jorge L. P., C, Fernando Fernández, Delabie, Jacques H. C. & Schultz, Ted R., 2015, A new species of Simopelta (Hymenoptera: Formicidae: Ponerinae) from Brazil and Costa Rica, Zootaxa 3956 (2), pp. 295-300 : 297-299 297-299
Megalomyrmex drifti     Brandão, Carlos Roberto F., 2003, Further Revisionary Studies On The Ant Genus Megalomyrmex Forel (Hymenoptera: Formicidae: Myrmicinae: Solenopsidini) C R F. B Abstract, Papéis Avulsos de Zoologia (São Paulo) 43 (8), pp. 145-159 : 157 157
Argia elongata   sp. nov.  Garrison, Rosser W. & Ellenrieder, Natalia Von, 2017, New species of the damselfly genus Argia from Mexico, Central America and Ecuador with an emphasis on Costa Rica (Insecta: Odonata: Coenagrionidae), Zootaxa 4235 (1), pp. 1-93 : 14-21 14-21
Miconia biolleyana   comb. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 65-67 65-67
Limnocoris virescens     Rodrigues, Higor D. D. & Sites, Robert W., 2019, Revision of Limnocoris (Heteroptera: Nepomorpha: Naucoridae) of North America, Zootaxa 4629 (4), pp. 451-497 : 487-489 487-489
Monstera anomala   sp. nov.  Zuluaga, Alejandro & Cameron, Kenneth M., 2018, Two new species of Monstera (Araceae: Monsteroideae) with entire leaves from Panama and Costa Rica, Phytotaxa 334 (1), pp. 1-9 : 2-5 2-5
Syscia murillocruzae   sp. nov.  Longino, John T. & Branstetter, Michael G., 2021, Integrating UCE Phylogenomics With Traditional Taxonomy Reveals a Trove of New World Syscia Species (Formicidae: Dorylinae), Insect Systematics and Diversity 5 (2), No. 2, pp. 1-51 : 29 29
Robustagramma biangulatum   sp. nov.  Marshall, Stephen A. & Cui, Yongsheng, 2005, Systematics of Robustagramma, a new genus of New World Sphaeroceridae (Diptera), Zootaxa 1026 (1), pp. 1-122 : 68-71 68-71
Venanus randallgarciai   sp. n.  Fernandez-Triana, Jose L, Whitfield, James B, Smith, M. Alex, Hallwachs, Winnie & Janzen, Daniel H., 2014, First record of the genus Venanus (Hymenoptera: Braconidae: Microgastrinae) in Mesoamerica, with the description of two new species from Costa Rica, Biodiversity Data Journal 2, pp. 4167-4167 : 4167 4167
Netomocera virgata   sp. nov.  Mitroiu, Mircea-Dan, 2019, Revision of Netomocera Bouček (Hymenoptera: Chalcidoidea: Pteromalidae), excluding the Oriental species, European Journal of Taxonomy 568, pp. 1-87 : 81-85 81-85
Venanus randallgarciai   sp. n.  Fernandez-Triana, Jose L, Whitfield, James B, Smith, M. Alex, Hallwachs, Winnie & Janzen, Daniel H., 2014, First record of the genus Venanus (Hymenoptera: Braconidae: Microgastrinae) in Mesoamerica, with the description of two new species from Costa Rica, Biodiversity Data Journal 2, pp. 4167-4167 : 4167 4167
Monstera costaricensis     Croat, Thomas B., Cedeño-Fonseca, Marco & Ortiz, Orlando O., 2024, Revision of Monstera (Araceae: Monsteroideae) of Central America, Phytotaxa 656 (1), pp. 1-197 : 49-52 49-52
Ariadna reginae   sp. nov.  Giroti, André Marsola & Brescovit, Antonio Domingos, 2018, The taxonomy of the American Ariadna Audouin (Araneae: Synspermiata: Segestriidae), Zootaxa 4400 (1), pp. 1-114 : 87-90 87-90
Cheiloneurus numida   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 368-370 368-370
Rasopone cryptergates   sp. nov.  Longino, John T. & Branstetter, Michael G., 2020, Phylogenomic Species Delimitation, Taxonomy, and ‘ Bird Guide’ Identification for the Neotropical Ant Genus Rasopone (Hymenoptera: Formicidae), Insect Systematics and Diversity 4 (2), No. 1, pp. 1-33 : 22 22
Closterocerus tischeriae   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 76-77 76-77
Epimetopus rectus   sp. nov.  Perkins, Philip D., 2012, 3531, Zootaxa 3531, pp. 1-95 : 31 31
Closterocerus eulampis   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 47-48 47-48
Cheiloneurus gyges   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 427-429 427-429
Miconia latidecurrens   sp. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 83-85 83-85
Protoneura aurantiaca     Ellenrieder, Natalia Von & Garrison, Rosser W., 2017, A synopsis of the Neotropical genus Protoneura (Odonata: Coenagrionidae), Zootaxa 4361 (1), pp. 1-76 : 13-15 13-15
Lachesilla albrookensis   sp. nov.  García Aldrete, Alfonso N. & Silva-Neto, Alberto Moreira Da, 2020, New Neotropical species of Lachesilla Westwood, in species group forcepeta (Psocodea: ‘ Psocoptera’: Lachesillidae), Zootaxa 4728 (1), pp. 49-62 : 50-61 50-61
Brycon     Toledo-Piza, Mônica, Baena, Eduardo G., Dagosta, Fernando C. P., Menezes, Naércio A., Ândrade, Marcelo, Benini, Ricardo C., Bertaco, Vinicius A., Birindelli, José Luís O., Boden, Gert, Buckup, Paulo A., Camelier, Priscila, Carvalho, Fernando R., Castro, Ricardo M. C., Chuctaya, Junior, Decru, Eva, Derijst, Eddy, Dillman, Casey B., Ferreira, Katiane M., Merxem, Dimitri G., Giovannetti, Victor, Hirschmann, Alice, Jégu, Michel, Jerep, Fernando C., Langeani, Francisco, Lima, Flávio C. T., Lucena, Carlos A. S., Lucena, Zilda Margarete S., Malabarba, Luiz R., Malabarba, Maria Cláudia S. L., Marinho, Manoela M. F., Mathubara, Kleber, Mattox, George M. T., Melo, Bruno F., Moelants, Tuur, Moreira, Cristiano R., Musschoot, Tobias, Netto-Ferreira, André L., Ota, Rafaela P., T. Oyakawa, Osvaldo, Pavanelli, Carla S., Reis, Roberto E., Santos, Osmar, Serra, Jane Piton, Silva, Gabriel S. C., Silva-Oliveira, Cárlison, Souza-Lima, Rosana, Vari, Richard P. & Zanata, Angela M., 2024, Checklist of the species of the Order Characiformes (Teleostei: Ostariophysi), Neotropical Ichthyology (e 230086) 22 (1), pp. 1-548 : 69-77 69-77
Symplocos striata     Kelly, Lawrence M., Almeda, Frank & Fritsch, Peter W., 2016, A taxonomic revision of Mexican and Central American Symplocos (Symplocaceae), Phytotaxa 264 (1), pp. 448-450 : 448-450 448-450
Orasema stramineipes     Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 4401 (1), pp. 1-107 : 87-89 87-89
Osoriellus debilis   comb. nov.  Irmler, Ulrich, 2014, The Neotropical species of the genus Osoriellus FAGEL, 1959 (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 64 (2), pp. 231-354 : 264-266 264-266
Megalopinus adjectus     Puthz, V., 2012, Über die neuweltlichen Megalopinus-Arten (Coleoptera, Staphylinidae) (24. Beitrag zur Kenntnis der Megalopsidiinen), Linzer biologische Beiträge 44 (1), pp. 613-834 : 639-641 639-641
Selymbria pluvialis     Sanborn, Allen F., 2019, The cicada genus Selymbria Stål, 1861 (Hemiptera: Cicadidae: Tibicininae: Selymbrini): redescription including ten new species and a key to the genus, Zootaxa 4614 (3), pp. 401-448 : 441 441
Cobacella palmensis   sp. nov.  Zumbado Echavarria, Marco A., Barrantes Barrantes, Edwin A., Helmic, Ericka E., Bartlett, Charles R. & Bahder, Brian W., 2023, A newspecies ofplanthopper in thegenus Cobacella (Hemiptera: Auchenorrhyncha Derbidae) from oil palm (Elaeis guineensis) in Costa Rica, Zootaxa 5351 (1), pp. 107-121 : 111-119 111-119
Megalopinus pulcherrimus     Puthz, V., 2012, Über die neuweltlichen Megalopinus-Arten (Coleoptera, Staphylinidae) (24. Beitrag zur Kenntnis der Megalopsidiinen), Linzer biologische Beiträge 44 (1), pp. 613-834 : 668 668
Oxytrigona pallida   sp. nov.  Lepeco, Anderson, 2024, Contribution to the taxonomy of Oxytrigona Cockerell, 1917 (Apidae, Meliponini), Zootaxa 5506 (3), pp. 369-395 : 382-386 382-386
Mischocyttarus chalucas     Silveira, Orlando Tobias, Silva, Suzanna de Sousa & Felizardo, Sherlem Patricia de Seixas, 2015, Notes on social wasps of the group of Mischocyttarus (Omega) punctatus (Ducke), with description of six new species (Hymenoptera, Vespidae, Polistinae), Revista Brasileira de Entomologia 59 (3), pp. 154-168 : 160-161 160-161
Hydrochus biexcavatus   sp. nov.  Perkins, Philip D., 2021, Taxonomy of Central American water beetles in the genus Hydrochus Leach, 1817 (Coleoptera: Hydrochidae), Zootaxa 4974 (3), pp. 459-503 : 466-467 466-467
Cyclocaccus monticola     Hisamatsu, Sadatomo, Bayless, Victoria M. & Carlton, Christopher E., 2016, Revision ofCyclocaccusSharp (Coleoptera: Nitidulidae: Nitidulinae), The Coleopterists Bulletin 70 (4), pp. 825-870 : 825-870 825-870
Gasteruption brasiliense     Macedo, Antonio Carlos Cruz, 2011, A revision of Gasteruption Latreille (Hymenoptera: Gasteruptiidae) in the Neotropical Region 3030, Zootaxa 3030 (1), pp. 1-62 : 22-26 22-26
Melaniphax suffusculus   sp. nov.  Bartlett, Charles R., 2019, A New Genus and Species of Delphacidae (Hemiptera: Fulgoroidea: Delphacidae) from Costa Rica, Zootaxa 4657 (2), pp. 361-368 : 363-366 363-366
Cyclocaccus clinei   sp. nov.  Hisamatsu, Sadatomo, Bayless, Victoria M. & Carlton, Christopher E., 2016, Revision ofCyclocaccusSharp (Coleoptera: Nitidulidae: Nitidulinae), The Coleopterists Bulletin 70 (4), pp. 825-870 : 825-870 825-870
Neolindus retusus     Guzman, Yoan Camilo, Tokareva, Alexandra, Koszela, Katarzyna & Żyła, Dagmara, 2024, Twenty-one new species of the Neotropical rove beetle genus Neolindus Scheerpeltz (Coleoptera, Staphylinidae, Paederinae), European Journal of Taxonomy 942, pp. 1-76 : 72 72
Passiflora brauliensis   sp. nov.  Kuethe, J. R., Rodríguez-Barboza, Gared & Álvarez-Alcázar, Leonardo, 2023, Passiflora brauliensis, a new species of Passiflora supersection Laurifoliae (Passifloraceae) from the volcanic forest of Costa Rica, Phytotaxa 584 (2), pp. 121-129 : 122-126 122-126
Majeorona truncata     Sanborn, Allen F., 2014, Checklist of the cicadas (Insecta: Hemiptera: Cicadidae) of Costa Rica including new records for fourteen species, Check List 10 (2), pp. 33-39 : 247 247
Heterospilus richardsi     Onody, Helena C., Kawada, Ricardo & Brandão, Carlos Roberto F., 2014, Type specimens of Hymenoptera deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil (excluding Aculeata), Papéis Avulsos de Zoologia (São Paulo) 54 (27), pp. 391-402 : 399 399
Osoriellus micros   comb. nov.  Irmler, Ulrich, 2014, The Neotropical species of the genus Osoriellus FAGEL, 1959 (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 64 (2), pp. 231-354 : 278-279 278-279
Miconia neomicrantha     Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 97-106 97-106
Miconia radicans     Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 114-117 114-117
Thecomyia chrysacra     Mortelmans, Jonas & Pollet, Marc, 2018, New data and species of Thecomyia Perty, 1833 (Diptera: Sciomyzidae) from Mitaraka (French Guiana), with notes on the genus, Zoosystema 40 (17), pp. 415-423 : 420 420
Thecomyia lateralis     Mortelmans, Jonas & Pollet, Marc, 2018, New data and species of Thecomyia Perty, 1833 (Diptera: Sciomyzidae) from Mitaraka (French Guiana), with notes on the genus, Zoosystema 40 (17), pp. 415-423 : 420 420
Temnothorax salvini     Prebus, Matthew M., 2021, Taxonomic revision of the Temnothorax salvini clade (Hymenoptera: Formicidae), with a key to the clades of New World Temnothorax, PeerJ (e 11514) 9, pp. 1-462 : 411-417 411-417
Symplocos serrulata     Kelly, Lawrence M., Almeda, Frank & Fritsch, Peter W., 2016, A taxonomic revision of Mexican and Central American Symplocos (Symplocaceae), Phytotaxa 264 (1), pp. 448-450 : 448-450 448-450
Leptohyphes zalope     Baumgardner, D. E. & Mccafferty, W. P., 2010, Revision of the genus Leptohyphes Eaton (Ephemeroptera: Leptohyphidae) in North and Central America, Zootaxa 2360 (1), pp. 1-33 : 28-30 28-30
Diglyphomorphomyia parva   sp. nov.  Hansson, Christer, 2022, Diglyphomorphomyia Girault (Chalcidoidea: Eulophidae) new to the Neotropical region including nine new species, Zootaxa 5141 (4), pp. 321-340 : 330-332 330-332
Cheiloneurus herxius   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 304-307 304-307
Grotiusomyia azofeifai   sp. nov.  Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, Zootaxa 5278 (1), pp. 39-77 : 46 46
Neolindus punctogularis     Guzman, Yoan Camilo, Tokareva, Alexandra, Koszela, Katarzyna & Żyła, Dagmara, 2024, Twenty-one new species of the Neotropical rove beetle genus Neolindus Scheerpeltz (Coleoptera, Staphylinidae, Paederinae), European Journal of Taxonomy 942, pp. 1-76 : 72 72
Grotiusomyia nigricans     Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, Zootaxa 5278 (1), pp. 39-77 : 42-43 42-43
Lutnes testaceus   comb. nov.  Gibson, Gary A. P., 2018, Revision of Lutnes Cameron (Hymenoptera: Eupelmidae), Zootaxa 4415 (2), pp. 330-356 : 350-355 350-355
Prodilis lola   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 95-96 95-96
Daidalotarsonemus maryae     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 97 97
Ficus plectonervata   sp. nov.  Medina, Nicolás, 2014, Three new species of Ficus (Moraceae) from Central and northern-South America, Phytotaxa 188 (1), pp. 21-30 : 26-27 26-27
Leptochromus laselva   sp. nov.  Lord, Nathan P., Carlton, Christopher E. & Leschen, Richard A. B., 2014, A New Species ofLeptochromusMotschulsky (Coleoptera: Staphylinidae: Scydmaeninae) from Costa Rica, with Notes on Morphology and Natural History, The Coleopterists Bulletin 68 (1), pp. 119-125 : 119-125 119-125
Lasioseius serripes   sp. nov.  Moraza, Maria L. & Lindquist, Evert E., 2018, A new species-group with new species of the genus Lasioseius (Acari: Mesostigmata: Blattisociidae) associated with Neotropical hispine beetles in furled leaves ofHeliconia, Acarologia 58 (1), pp. 62-98 : 74-83 74-83
Dohrniphora parvipala   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 111 111
Stenoeurilla herediana   sp. nov.  Brailovsky, Harry & Barrera, Ernesto, 2019, A revision of the Costa Rican species of Stenoeurilla Brailovsky & Barrera (Hemiptera: Heteroptera: Coreidae: Stenoscelideini), with the description of two new species, new distributional records, synonymical note, and key to the known species, Zootaxa 4550 (4), pp. 545-556 : 547-552 547-552
Deltometopus bicolor   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 30-31 30-31
Schizoptera (Odontorhagus) dolosa   sp. nov.  Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284 : 268-269 268-269
Cyclocaccus stonyx   sp. nov.  Hisamatsu, Sadatomo, Bayless, Victoria M. & Carlton, Christopher E., 2016, Revision ofCyclocaccusSharp (Coleoptera: Nitidulidae: Nitidulinae), The Coleopterists Bulletin 70 (4), pp. 825-870 : 825-870 825-870
Azteca flavigaster   new species  Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 30-31 30-31
Edessa fuscolimbata   sp. nov.  Bitar, Murilo Victor Silva, Mendonça, Maria Thayane Da Silva & Fernandes, José Antônio Marin, 2023, Description of seven new species of Edessa Fabricius, 1803 from Central America (Heteroptera, Pentatomidae, Edessinae), Zootaxa 5278 (3), pp. 578-600 : 586-588 586-588
Trechnites spondes   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 575-576 575-576
Crematogaster wardi   NEW SPECIES  Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150 : 123-125 123-125
Melaloncha laselvae   sp. nov.  Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 31-32 31-32
Dohrniphora commina   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 105 105
Coccidencyrtus aries   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 89-91 89-91
Dohrniphora porrasae   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 51-52 51-52
Petiolachertus castor   sp. nov.  Hansson, Christer, 2024, Two new genera of Eulophinae (Hymenoptera: Eulophidae), including four new species parasitoids on Gracillariidae (Lepidoptera) leaf miners in Costa Rica, Zootaxa 5447 (4), pp. 562-572 : 563-565 563-565
Temnocerus rostralis   sp. nov.  Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 35-36 35-36
Ancistroceroides soikai   sp. nov.  Grandinete, Yuri Campanholo, Noll, Fernando Barbosa & Carpenter, James, 2016, Three new species of tribe Odynerini (Hymenoptera, Vespidae, Eumeninae) from the Neotropical Region, Zootaxa 4162 (2), pp. 391-400 : 392-394 392-394
Cosmorrhyncha albistrigulana   sp. nov.  Brown, John W., Razowski, Józef & Timm, Alicia E., 2020, Revision of New World Cosmorrhyncha Meyrick, 1913 (Lepidoptera: Tortricidae: Olethreutinae), with descriptions of five new species, Insecta Mundi 753, pp. 1-21 : 13-14 13-14
Daidalotarsonemus lini     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 89 89
Succinctonotum frosti   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 50-51 50-51
Cenophengus niger     Vega-Badillo, Viridiana, Morrone, Juan J. & Zaragoza-Caballero, Santiago, 2021, Revision of the genus Cenophengus LeConte, 1881 (Coleoptera, Phengodidae), with the description of four new species, new geographic records and a new synonymy, ZooKeys 1068, pp. 73-148 : 73 73
Lasioseius fuscina   sp. nov.  Moraza, Maria L. & Lindquist, Evert E., 2018, A new species-group with new species of the genus Lasioseius (Acari: Mesostigmata: Blattisociidae) associated with Neotropical hispine beetles in furled leaves ofHeliconia, Acarologia 58 (1), pp. 62-98 : 83-87 83-87
Crematogaster sotobosque   NEW SPECIES  Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150 : 106-109 106-109
Galeopsomyia hiata   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 330-331 330-331
Pristaulacus maculatus     Smith, David R., 2008, Aulacidae of the southwestern United States, Mexico, and Central America (Hymenoptera), Beiträge Zur Entomologie = Contributions to Entomology 58 (2), pp. 267-355 : 298-300 298-300
Osbornellus compressus     Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 89 89
Lasioseius duobtusisetis   sp. nov.  Moraza, Maria L. & Lindquist, Evert E., 2018, A new species-group with new species of the genus Lasioseius (Acari: Mesostigmata: Blattisociidae) associated with Neotropical hispine beetles in furled leaves ofHeliconia, Acarologia 58 (1), pp. 62-98 : 88-93 88-93
Elasmarion longipes   sp. nov.  Hansson, Christer, 2020, Two new Eulophinae genera (Chalcidoidea: Eulophidae) from the Neotropical region, Zootaxa 4877 (1), pp. 185-194 : 187-189 187-189
Crematogaster flavomicrops   NEW SPECIES  Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150 : 68-70 68-70
Galeopsomyia noyesi   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 144-146 144-146
Orixia philotes   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 147-148 147-148
Prochiloneurus thonus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 482-485 482-485
Megalota vulgaris   sp. nov.  Brown, John W., 2009, The discovery of Megalota in the Neotropics, with a revision of the New World species (Lepidoptera: Tortricidae: Olethreutini), Zootaxa 2279 (1), pp. 1-50 : 12-14 12-14
Neopleurophora acrochaetopyga   sp. nov.  Ament, Danilo Cesar & Amorim, Dalton De Souza, 2013, Taxonomic revision of the genus Neopleurophora Brown (Diptera: Phoridae), with the description of thirty seven new species, Zootaxa 3657 (1), pp. 1-93 : 19-20 19-20
Cryptopone guianensis     Fernandes, Io & Delabie, Jhc, 2019, A New Species of Cryptopone Emery (Hymenoptera: Formicidae: Ponerinae) from Brazil with Observations on the Genus and a Key for New Word Species, Sociobiology 66 (3), pp. 408-413 : 410 410
Maelodrus costaricensis   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 14-15 14-15
Neopleurophora costaricana   sp. nov.  Ament, Danilo Cesar & Amorim, Dalton De Souza, 2013, Taxonomic revision of the genus Neopleurophora Brown (Diptera: Phoridae), with the description of thirty seven new species, Zootaxa 3657 (1), pp. 1-93 : 46-48 46-48
Neopleurophora tanytarsus   sp. nov.  Ament, Danilo Cesar & Amorim, Dalton De Souza, 2013, Taxonomic revision of the genus Neopleurophora Brown (Diptera: Phoridae), with the description of thirty seven new species, Zootaxa 3657 (1), pp. 1-93 : 23-24 23-24
Orasema costaricensis     Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 4401 (1), pp. 1-107 : 26-27 26-27
Dohrniphora rinconensis   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 44-45 44-45
Cheiloneurus onestas   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 259-261 259-261
Cheiloneurus finator   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 415-417 415-417
Closterocerus oligothrix   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 65-66 65-66
Embates marchionis   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Adelothyreus totus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 9-10 9-10
Quichuamyia aplanatantennae   sp. nov.  Brammer, Colin A., 2005, Quichuamyia, a new Neotropical genus of Stratiomyidae (Insecta: Diptera), Zootaxa 990 (1), pp. 1-14 : 3-9 3-9
Cyrtocapsus glabratus   sp. nov.  Henry, Thomas J., 2022, Revision of the New World Plant Bug Genus Cyrtocapsus (Heteroptera: Miridae Bryocorinae: Eccritotarsini), with New and Revised Synonymies, Lectotype Designations, and Descriptions of 12 New Species, Zootaxa 5154 (1), pp. 1-48 : 20 20
Xyleborinus volvulus     Bright, Donald E., 2014, A Catalog of Scolytidae and Platypodidae (Coleoptera), Supplement 3 (2000 - 2010), with notes on subfamily and tribal reclassifications, Insecta Mundi 2014 (356), pp. 1-336 : 282 282
Mesembrinella flavicrura     Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 124-125 124-125
Azteca pittieri     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 43-45 43-45
Closterocerus azofeifai   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 27-28 27-28
Neaporia cassandra   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 28-29 28-29
Cheiloneurus bion   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 352-353 352-353
Daidalotarsonemus     Araújo, Marcel Santos De & Feres, Reinaldo José Fazzio, 2019, Catalog of the mite (Acari) type specimens deposited at the “ Universidade Estadual Paulista (UNESP), Campus de São José do Rio Preto ”, São Paulo, Brazil (DZSJRP), Zootaxa 4700 (4), pp. 557-583 : 570-571 570-571
Daidalotarsonemus bauchani     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 24 24
Megalomyrmex wettereri   sp. nov.  Brandão, Carlos Roberto F., 2003, Further Revisionary Studies On The Ant Genus Megalomyrmex Forel (Hymenoptera: Formicidae: Myrmicinae: Solenopsidini) C R F. B Abstract, Papéis Avulsos de Zoologia (São Paulo) 43 (8), pp. 145-159 : 155-157 155-157
Khamul erwini   sp. nov.  Gates, M. W., 2008, Description of Khamul, gen. n. (Hymenoptera: Chalcidoidea: Eurytomidae), with a hypothesis of its phylogenetic placement, Zootaxa 1898 (1), pp. 1-33 : 27-29 27-29
Trachymyrmex isthmicus     Mayhé-Nunes, A. J. & Brandão, C. R. F., 2007, Revisionary studies on the attine ant genus Trachymyrmex Forel. Part 3: The Jamaicensis group (Hymenoptera: Formicidae)., Zootaxa 1444, pp. 1-21 : 8-11 8-11
Lithocharodes fusciventris     Irmler, Ulrich, 2021, The Neotropical species of the genus Lithocharodes SHARP, 1876 (Coleoptera: Staphylinidae: Staphylininae: Xantholinini), Beiträge Zur Entomologie = Contributions to Entomology 71 (1), pp. 29-85 : 45-46 45-46
Xyleborus rugulosipes     Bright, Donald E., 2014, A Catalog of Scolytidae and Platypodidae (Coleoptera), Supplement 3 (2000 - 2010), with notes on subfamily and tribal reclassifications, Insecta Mundi 2014 (356), pp. 1-336 : 209-210 209-210
Bohayella geraldinae     Kang, Ilgoo, 2022, Bohayella rodrigodiazi sp. nov.: a new species from Ecuador with an updated key to the New World species of Bohayella Belokobylskij (Hymenoptera, Braconidae, Cardiochilinae), Journal of Hymenoptera Research 89, pp. 1-8 : 1 1
Blackburneus laxepunctatus     Dellacasa, Marco, Dellacasa, Giovanni & Gordon, Robert D., 2011, Systematic revision of the American taxa belonging to the genera Alloblackburneus Bordat, 2009, and Blackburneus Schmidt, 1913, with description of seven new species (Coleoptera: Scarabaeidae: Aphodiinae), Insecta Mundi 2011 (204), pp. 1-52 : 26-27 26-27
Scybalocanthon moniliatus     Silva, Fernando A. B. & Valois, Marcely, 2019, A taxonomic revision of the genus Scybalocanthon Martínez, 1948 (Coleoptera Scarabaeidae: Scarabaeinae: Deltochilini), Zootaxa 4629 (3), pp. 301-341 : 327-328 327-328
Grotiusomyia phalaros   sp. nov.  Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, Zootaxa 5278 (1), pp. 39-77 : 54-55 54-55
Osorius canaliculatus     Irmler, Ulrich, 2010, The Neotropical species of the genus Osorius G - M, 1829 with remarks to the Neotropical Osoriid complex (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 60 (2), pp. 363-426 : 380-381 380-381
Eucosmophora pouteriae     Prins, Jurate De, Brito, Rosângela & Moreira, Gilson Rudinei Pires, 2016, An annotated taxonomic checklist of the Neotropical Gracillariidae (Lepidoptera) with links to the information on host plants and parasitoids, Zootaxa 4158 (1), pp. 1-51 : 24 24
Euhylaeogena byattae   sp. nov.  Hespenheide, Henry A., 2014, A Reconsideration ofHylaeogenaObenberger, 1923 (Coleoptera: Buprestidae), with Descriptions of a New Genus and New Species from Mexico and Central America, The Coleopterists Bulletin 68 (1), pp. 21-30 : 26-27 26-27
Daidalotarsonemus azofeifai     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 17-24 17-24
Schizoptera (Odontorhagus) simpla   sp. nov.  Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284 : 279-280 279-280
Dyscolotaxia championi     Otto, Robert L., 2023, A revision of Dyscolotaxia Horn, 1890 (Coleoptera: Eucnemidae: Macraulacinae: Macraulacini), with the description of Amazotaxia new genus from South America, Insecta Mundi 2023 (21), pp. 1-15 : 4-6 4-6
Gonatocerus (Gonatocerus) mexicanus     Triapitsyn, Serguei V., Huber, John T., Logarzo, Guillermo A., Berezovskiy, Vladimir V. & Aquino, Daniel A., 2010, Review of Gonatocerus (Hymenoptera: Mymaridae) in the Neotropical region, with description of eleven new species, Zootaxa 2456, pp. 1-243 : 31-34 31-34
Galeopsomyia nitida   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 415-416 415-416
Coniceromyia stichochaeta   sp. nov.  Ament, Danilo César, Kung, Giar-Ann & Brown, Brian V., 2020, Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus, Zootaxa 4830 (1), pp. 1-61 : 46 46
Closterocerus deltoides   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 45-46 45-46
Eranina cretaria     Groll, Elisa Von, 2017, Catalogue of Coleoptera type specimens housed in the collection of the Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, Brazil, Zootaxa 4318 (3), pp. 439-473 : 454 454
Closterocerus angustipennis   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 21-22 21-22
Coccidencyrtus sivan   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 109-110 109-110
Orasema woolleyi   sp. nov.  Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 4401 (1), pp. 1-107 : 97-99 97-99
Dissomphalus punctatus     Azevedo, C. O., 2003, Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae), Zootaxa 338 (1), pp. 1-74 : 28-29 28-29
Charterginus nevermanni     Somavilla, Alexandre, Aragão, Marcos, Barroso, Paulo Cézar Salgado, Menezes, Rodolpho Santos Telles & Carpenter, James M., 2023, Taxonomic notes on the genus Charterginus Fox, 1898 (Vespidae: Polistinae: Epiponini) with images of the type specimens and new occurrence records, Zootaxa 5353 (2), pp. 143-152 : 147 147
Dromaeolus brunneus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 25-27 25-27
Macreupelmus dromedarius     Gibson, Gary A. P., 2016, Revision of the Neotropical genus Macreupelmus Ashmead (Hymenoptera: Chalcidoidea: Eupelmidae), Zootaxa 4161 (1), pp. 81-115 : 99-101 99-101
Plagiocephalus latifrons     Vasconcelos, Ana Caroline O., Wendt, Lisiane D. & de Carvalho, Claudio J. B., 2019, Taxonomic revision of the Neotropical stalk-eyed fly Plagiocephalus Wiedemann (Diptera, Ulidiidae, Ulidiinae), Revista Brasileira de Entomologia 63 (1), pp. 80-90 : 86-88 86-88
Adelius pentagonalis   sp. nov.  Shimbori, Eduardo M., Bortoni, Marco A., Shaw, Scott R., Souza-Gessner, Carolina Da S., Cerântola, Paula De C. M. & Penteado-Dias, Angélica M., 2019, Revision of the New World genera Adelius Haliday and Paradelius de Saeger (Hymenoptera: Braconidae: Cheloninae: Adeliini), Zootaxa 4571 (2), pp. 151-200 : 185-187 185-187
Temnocerus herediensis   sp. nov.  Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 21-23 21-23
Pedinotus variegatus     Belokobylskij, Sergey A., Castro, Clóvis Sormus De, Shimbori, Eduardo Mitio, Zaldívar-Riverón, Alejandro, Penteado-Dias, Angélica Maria & Braet, Yves, 2017, Taxonomic revision of the Neotropical species of the braconid wasp genus Pedinotus Szépligeti, 1902 (Hymenoptera: Braconidae: Doryctinae), Zootaxa 4327 (1), pp. 1-102 : 97-100 97-100
Dromaeolus holdridgei   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 28-29 28-29
Cheiloneurus pherus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 356-358 356-358
Dissomphalus krombeini     Azevedo, C. O., 2003, Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae), Zootaxa 338 (1), pp. 1-74 : 20-22 20-22
Myrmelachista mexicana     Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 39-40 39-40
Dohrniphora selenis   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 82 82
Melaloncha striatula     Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 63-64 63-64
Adelomyrmex     Ulysséa, Mônica Antunes, Prado, Lívia P. & Brandão, Carlos Roberto F., 2015, Type specimens of the traditional Myrmicinae (Hymenoptera: Formicidae) ant tribes deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil: Adelomyrmecini, Basicerotini, Blepharidatt ini, Crematogastrini, Formicoxenini, Lenomyrmecini, Myrmicini, Phalacromyrmecini, Pheidolini, Stegomyrmecini, Stenammini and Tetramoriini, Papéis Avulsos de Zoologia (São Paulo) 55 (12), pp. 175-204 : 177-178 177-178
Zelus lewisi   sp. n.  Zhang, Guanyang, Hart, Elwood R & Weirauch, Christiane, 2016, A taxonomic monograph of the assassin bug genus Zelus Fabricius (Hemiptera: Reduviidae): 71 species based on 10,000 specimens, Biodiversity Data Journal 4, pp. 8150-8150 : 8150 8150
Grotiusomyia albiclava   sp. nov.  Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, Zootaxa 5278 (1), pp. 39-77 : 43-44 43-44
Eleusis nigerrima     Irmler, Ulrich, 2017, The Neotropical species of the genus Eleusis LAPORTE, 1835 with description of the new genus Eleusima (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 67 (2), pp. 275-318 : 286-287 286-287
Stegnoclava zorropsis   sp. nov.  Opitz, Weston, 2010, Classification, Natural History, and Evolution of the Epiphloeinae (Coleoptera: Cleridae). Part VIII. The Genera Acanthocollum Opitz, Stegnoclava Opitz, and Ichnea Laporte, The Coleopterists Bulletin (mo 9) 64, pp. 1-65 : 17 17
Embates maculifer   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Opilioseius grallator     LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, Zootaxa 3663 (1), pp. 1-102 : 32 32
Fungiseius armatus     LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, Zootaxa 3663 (1), pp. 1-102 : 32 32
Spadiseius spathiphyllae     LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, Zootaxa 3663 (1), pp. 1-102 : 32 32
Spadiseius calyptrogynae     LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, Zootaxa 3663 (1), pp. 1-102 : 32 32
Neaporia irma   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 14-15 14-15
Daidalotarsonemus alas     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 10 10
Galeopsomyia falla   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 307-308 307-308
Dromaeolus americanus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 24-25 24-25
Athis analibiae     García-Díaz, José De Jesús, Espinoza-Sanabria, Bernardo A., Worthy, Robert, González, Jorge M., Janzen, Daniel H. & Hallwachs, Winnie, 2024, Synopsis of the Castniidae (Lepidoptera) of Costa Rica, Zootaxa 5481 (2), pp. 151-202 : 200 200
Osbornellus nielsoni   sp. nov.  Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 97 97
Sesioctonus longinoi   sp. nov.  Briceño, Michael J. Sharkey Rosa A., 2005, Review of Sesioctonus Viereck (Hymenoptera: Braconidae: Agathidinae) from Colombia with descriptions of five new species, Zootaxa 1002 (1002), pp. 45-58 : 49-52 49-52
Pedinotus rojasi     Belokobylskij, Sergey A., Castro, Clóvis Sormus De, Shimbori, Eduardo Mitio, Zaldívar-Riverón, Alejandro, Penteado-Dias, Angélica Maria & Braet, Yves, 2017, Taxonomic revision of the Neotropical species of the braconid wasp genus Pedinotus Szépligeti, 1902 (Hymenoptera: Braconidae: Doryctinae), Zootaxa 4327 (1), pp. 1-102 : 83-85 83-85
Melaloncha crinita   sp. nov.  Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 47 47
Costarina selva   sp. nov.  Platnick, Norman I., Berniker, Lily & Víquez, Carlos, 2014, The Goblin Spider Genus Costarina (Araneae, Oonopidae), Part 2: the Costa Rican fauna, American Museum Novitates 2014 (3794), pp. 1-76 : 8 8
Neaporia dianne   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 35-36 35-36
Trechnites kale   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 573-575 573-575
Syringogaster rufa     Marshall, S. A., Buck, M., Skevington, J. H. & Grimaldi, D., 2009, A revision of the family Syringogastridae (Diptera: Diopsoidea), Zootaxa 1996 (1), pp. 1-80 : 59-62 59-62
Protopolybia picteti     Dos Santos Junior, José N. A., Silveira, Orlando T. & Carpenter, James M., 2020, Taxonomic revision of the Protopolybia picteti - emortualis species-group (Richards 1978), with descriptions of two new species (Hymenoptera: Vespidae, Polistinae), Zootaxa 4729 (2), pp. 228-248 : 240-244 240-244
Galeopsomyia liosa   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 128-129 128-129
Acanthaegilips dentis   sp. nov.  Ros-Farré, Palmira, Sporrong, Michael, Ronquist, Fredrik & Pujade-Villar, Juli, 2003, Revision Of The Neotropical Anacharitinae Genus Acanthaegilips (Hym., Cynipoidea, Figitidae), Papéis Avulsos de Zoologia 43 (2), pp. 11-30 : 20-21 20-21
Galeopsomyia crotonae   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 287-289 287-289
Cheiloneurus mirabel   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 262-263 262-263
Prodilis maryann   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 92-93 92-93
Cheiloneurus parnisa   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 361-363 361-363
Daidalotarsonemus marini     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 97 97
Lasioseius cassidini   sp. nov.  Moraza, Maria L. & Lindquist, Evert E., 2018, A new species-group with new species of the genus Lasioseius (Acari: Mesostigmata: Blattisociidae) associated with Neotropical hispine beetles in furled leaves ofHeliconia, Acarologia 58 (1), pp. 62-98 : 69-74 69-74
Galeopsomyia adobia   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 212-213 212-213
Spalangia stictocyla   sp. nov.  Gibson, Gary A. P., 2009, 2259, Zootaxa 2259, pp. 1-159 : 146-148 146-148
Osbornellus fuentesi   sp. nov.  Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 52-54 52-54
Quirsfeldia stethonoides   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 11 11
Temnocerus niger   sp. nov.  Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 26 26
Neaporia kristina   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 15-16 15-16
Daidalotarsonemus cuadradus     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 41 41
Grotiusomyia pilosa   sp. nov.  Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, Zootaxa 5278 (1), pp. 39-77 : 56 56
Cyrtocapsus metafemoratus   sp. nov.  Henry, Thomas J., 2022, Revision of the New World Plant Bug Genus Cyrtocapsus (Heteroptera: Miridae Bryocorinae: Eccritotarsini), with New and Revised Synonymies, Lectotype Designations, and Descriptions of 12 New Species, Zootaxa 5154 (1), pp. 1-48 : 29 29
Dromaeolus herediensis   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 27-28 27-28
Adelothyreus costaricensis   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 8-9 8-9
Mesembrinella socors     Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 133-134 133-134
Protyndarichoides damocles   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 545-546 545-546
Onichodon confluentus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 16-17 16-17
Melaloncha maculata     Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 58-59 58-59
Aphestia fisheri   sp. nov.  Camargo, Alexssandro, Vieira, Rodrigo & Rafael, José Albertino, 2024, Taxonomic review of Aphestia Schiner, 1866 (Diptera: Asilidae: Laphriinae) with description of seven new species, Zootaxa 5436 (1), pp. 1-80 : 40-44 40-44
Daidalotarsonemus ginae     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 70-71 70-71
Coniceromyia auristriata     Ament, Danilo César & Amorim, Dalton De Souza, 2016, Taxonomic revision of Coniceromyia Borgmeier (Diptera: Phoridae), with the description of three new species from Brazil, Zootaxa 4086 (1), pp. 1-87 : 13-16 13-16
Neococcidencyrtus cyclope   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 132-133 132-133
Schizoptera (Odontorhagus) quasicompleta   sp. nov.  Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284 : 274-275 274-275
Pseudestoloides costaricensis     Santos-Silva, Antonio, Wappes, James E. & Galileo, Maria Helena M., 2018, Descriptions and synonymies in American Desmiphorini (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 4375 (4), pp. 451-501 : 458 458
Galeopsomyia aspratilis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 482-483 482-483
Closterocerus noyesi   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 64-65 64-65
Octostruma     Ulysséa, Mônica Antunes, Prado, Lívia P. & Brandão, Carlos Roberto F., 2015, Type specimens of the traditional Myrmicinae (Hymenoptera: Formicidae) ant tribes deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil: Adelomyrmecini, Basicerotini, Blepharidatt ini, Crematogastrini, Formicoxenini, Lenomyrmecini, Myrmicini, Phalacromyrmecini, Pheidolini, Stegomyrmecini, Stenammini and Tetramoriini, Papéis Avulsos de Zoologia (São Paulo) 55 (12), pp. 175-204 : 180-181 180-181
Ichnea frenata     Opitz, Weston, 2010, Classification, Natural History, and Evolution of the Epiphloeinae (Coleoptera: Cleridae). Part VIII. The Genera Acanthocollum Opitz, Stegnoclava Opitz, and Ichnea Laporte, The Coleopterists Bulletin (mo 9) 64, pp. 1-65 : 42-45 42-45
Galeopsomyia lealis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 354-355 354-355
Crematogaster bryophilia   NEW SPECIES  Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150 : 41-44 41-44
Zelus lewisi   sp. n.  Zhang, Guanyang, Hart, Elwood R & Weirauch, Christiane, 2016, A taxonomic monograph of the assassin bug genus Zelus Fabricius (Hemiptera: Reduviidae): 71 species based on 10,000 specimens, Biodiversity Data Journal 4, pp. 8150-8150 : 8150 8150
Tectaria moranii   sp. nov.  Tang, Guang-Da & Zhang, Li-Bing, 2018, Tectaria moranii (Tectariaceae), a new fern species from Costa Rica, Phytotaxa 357 (3), pp. 230-234 : 230-232 230-232
Osbornellus maesi   sp. nov.  Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 49-51 49-51
Cheiloneurus nebucha   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 455-457 455-457
Orasema evansi   sp. nov.  Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 4401 (1), pp. 1-107 : 33-47 33-47
Onichodon rufus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 17-18 17-18
Eranina cretaria   comb. nov.  MONNÉ, MIGUEL A., 2006, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part III. Subfamilies Parandrinae, Prioninae, Anoplodermatinae, Aseminae Spondylidinae, Lepturinae, Oxypeltinae, and addenda to the Cerambycinae and Lamiinae,, Zootaxa 1212 (1), pp. 1-244 : 183 183
Coccidencyrtus xero   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 103-105 103-105
Coniceromyia broadheadi     Ament, Danilo César, Kung, Giar-Ann & Brown, Brian V., 2020, Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus, Zootaxa 4830 (1), pp. 1-61 : 55 55
Pelopsis baloghi   sp. nov.  Behan-Pelletier, V., Eamer, B. & K. W, 2003, Redefinition Of Pelopsis (Acari: Oribatida: Mycobatidae), With Description Of Pelopsis Baloghi Sp. N. From Costa Rica, Acta Zoologica Academiae Scientiarum Hungaricae 49 (1), pp. 5-15 : 10-14 10-14
Blepharoneura cornelli   sp. nov.  Norrbom, Allen L. & Condon, Marty, 2010, Revision of the femoralis group of Blepharoneura Loew (Diptera: Tephritidae) 2374, Zootaxa 2374 (1), pp. 1-139 : 59-60 59-60
Dissomphalus guttus   sp. nov.  Azevedo, C. O., 2003, Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae), Zootaxa 338 (1), pp. 1-74 : 49-50 49-50
Lindsaea mesoamericana   sp. nov.  Rojas-Alvarado, Alexander Francisco & Tejero-Díez, José Daniel, 2017, Novelties and notes in Lindsaea (Lindsaeaceae) from Mexico and Central America, Phytotaxa 296 (2), pp. 147-160 : 152-157 152-157
Closterocerus altamiraensis   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 18-19 18-19
Neaporia lena   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 21-22 21-22
Ponsoonops viejo   sp. nov.  Bolzern, Angelo, 2014, The Neotropical goblin spiders of the new genera Ponsoonops and Bipoonops (Araneae, Oonopidae), American Museum Novitates 2014 (3803), pp. 1-1 : 1--1 1--1
Cheiloneurus genua   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 329-331 329-331
Eucosmophora ingae     Prins, Jurate De, Brito, Rosângela & Moreira, Gilson Rudinei Pires, 2016, An annotated taxonomic checklist of the Neotropical Gracillariidae (Lepidoptera) with links to the information on host plants and parasitoids, Zootaxa 4158 (1), pp. 1-51 : 23 23
Osorius costaricensis     Irmler, Ulrich, 2010, The Neotropical species of the genus Osorius G - M, 1829 with remarks to the Neotropical Osoriid complex (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 60 (2), pp. 363-426 : 383-384 383-384
Osbornellus anonae     Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 33 33
Daidalotarsonemus serratus     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 124 124
Temnocerus salvensis   sp. nov.  Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 37-38 37-38
Diochus nanus     Irmler, Ulrich, 2017, A review of the Neotropical genus Diochus ERICHSON, 1840 (Coleoptera: Staphylinidae: Staphylininae), Beiträge Zur Entomologie = Contributions to Entomology 67 (1), pp. 1-62 : 35-38 35-38
Hexapopha reimoseri   comb. nov.  Platnick, Norman I., Berniker, Lily & Víquez, Carlos, 2014, A New Goblin Spider Genus of the Zyngoonops Group from Costa Rica, With Notes on Coxapopha (Araneae, Oonopidae), American Museum Novitates 2014 (3820), pp. 1-1 : 1--1 1--1
Cheiloneurus letos   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 410-413 410-413
Homalopoda beatriz   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 65-67 65-67
Eleusis rufula     Irmler, Ulrich, 2017, The Neotropical species of the genus Eleusis LAPORTE, 1835 with description of the new genus Eleusima (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 67 (2), pp. 275-318 : 300-301 300-301
Prochiloneurus lenus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 475-477 475-477
Prodilis joanna   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 90 90
Melaloncha digitalis     Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 17-18 17-18
Neaporia sonia   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 39-40 39-40
Closterocerus apiculus   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 22-23 22-23
Closterocerus lineatus   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 58-59 58-59
Galeopsomyia alloris   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 222-223 222-223
Temnocerus minutus   sp. nov.  Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 25-26 25-26
Isarthrus striatus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 18-20 18-20
Paragrallomyia pseudoalbibasis   sp. nov.  Ferro, Gustavo Borges & Marshall, Stephen A., 2020, A redefinition of Paragrallomyia Hendel (Diptera: Micropezidae, Taeniapterinae) and a revision of the P. albibasis complex, Zootaxa 4822 (1), pp. 39-70 : 58-60 58-60
Coccidencyrtus chenoa   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 96-97 96-97
Eranina costaricensis     Groll, Elisa Von, 2017, Catalogue of Coleoptera type specimens housed in the collection of the Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, Brazil, Zootaxa 4318 (3), pp. 439-473 : 453 453
Neaporia christy   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 22 22
Absensiugum brunneum   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 21-22 21-22
Adelothyreus brevis   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 7-8 7-8
Cheiloneurus semis   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 235-237 235-237
Melaloncha stylata     Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 42 42
Macgrathphora caribbea   sp. nov.  Brown, Brian V., 2022, Two new genera of phorid flies, Macgrathphora and Aurisetiphora, from Costa Rica (Diptera: Phoridae), with recommendations for naming new genera in the family, Zootaxa 5115 (4), pp. 571-581 : 574-575 574-575
Austroearinus chrysokeras   sp. nov.  Sharkey, Michael, 2006, Two new genera of Agathidinae (Hymenoptera: Braconidae) with a key to the genera of the New World, Zootaxa 1185, pp. 37-51 : 47-51 47-51
Lacus pectinatus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 12-14 12-14
Dohrniphora heliconiae   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 68 68
Closterocerus brevipes   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 30-31 30-31
Closterocerus flammeus   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 48-49 48-49
Trachymyrmex zeteki     Mayhé-Nunes, A. J. & Brandão, C. R. F., 2007, Revisionary studies on the attine ant genus Trachymyrmex Forel. Part 3: The Jamaicensis group (Hymenoptera: Formicidae)., Zootaxa 1444, pp. 1-21 : 16-20 16-20
Embates gracilis   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Syscia minuta   sp. nov.  Longino, John T. & Branstetter, Michael G., 2021, Integrating UCE Phylogenomics With Traditional Taxonomy Reveals a Trove of New World Syscia Species (Formicidae: Dorylinae), Insect Systematics and Diversity 5 (2), No. 2, pp. 1-51 : 28 28
Cladonota (Falculifera) rex     England, Sam J., Flynn, Dawn J. & Robert, Daniel, 2020, A new species of treehopper in the genus Cladonota Stål (Hemiptera: Membracidae Membracinae: Hypsoprorini) from Costa Rica, with preliminary observations of its behaviour and natural history, Zootaxa 4750 (4), pp. 596-598 : 596-598 596-598
Hyboptera apollonia     Erwin, Terry L. & Henry, Shasta C., 2017, Hyboptera Chaudoir, 1872 of the Cryptobatida group of subtribe Agrina: A taxonomic revision with notes on their ways of life (Insecta, Coleoptera, Carabidae, Lebiini), ZooKeys 714, pp. 61-127 : 94-97 94-97
Myrmapana costaricaensis   sp. nov.  Pekár, Stano, 2022, Two new ant-mimicking spiders (Araneae: Salticidae) from Costa Rica, European Journal of Taxonomy 852 (1), pp. 31-42 : 33-37 33-37
Paragrallomyia vulpes   comb. nov.  Ferro, Gustavo Borges & Marshall, Stephen A., 2020, A redefinition of Paragrallomyia Hendel (Diptera: Micropezidae, Taeniapterinae) and a revision of the P. albibasis complex, Zootaxa 4822 (1), pp. 39-70 : 67-69 67-69
Corcovetella galianoae   sp. nov.  Pekár, Stano, 2022, Two new ant-mimicking spiders (Araneae: Salticidae) from Costa Rica, European Journal of Taxonomy 852 (1), pp. 31-42 : 37-40 37-40
Camarochilus americanus     Weirauch, Christiane, Forero, Dimitri & Schuh, Randall T., 2020, Taxonomic revision of Camarochilus Harris (Hemiptera: Pachynomidae), American Museum Novitates 2020 (3959), pp. 1-32 : 10-12 10-12
Schizoptera (Odontorhagus) radicata   sp. nov.  Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284 : 278 278
Parosus portobelo   sp. nov.  Makranczy, György, 2014, Review of the genus Parosus Sharp, 1887 (Coleoptera: Staphylinidae, Oxytelinae), Revue suisse de Zoologie 121 (1), pp. 77-133 : 120-122 120-122
Schizoptera (Odontorhagus) exacta   sp. nov.  Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284 : 270-271 270-271
Schizoptera (Odontorhagus) acuta   sp. nov.  Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284 : 262-263 262-263
Schizoptera (Odontorhagus) piscicaudata   sp. nov.  Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284 : 273-274 273-274
Megalostrata pacifica   sp. nov.  Bonaldo, Alexandre B., Galán-Sanchez, M. Antonio & García, Fabián, 2024, Advances on the taxonomy of Megalostrata Karsch, 1880 (Araneae, Corinnidae, Corinninae), with descriptions of two new species, Zootaxa 5458 (4), pp. 495-523 : 505-507 505-507
Alitocoris schraderi     Garbelotto, Thereza De A., Campos, Luiz A. & Grazia, Jocelia, 2013, Cladistics and revision of Alitocoris with considerations on the phylogeny of the Herrichella clade (Hemiptera, Pentatomidae, Discocephalinae, Ochlerini), Zoological Journal of the Linnean Society 168, pp. 452-472 : 458-462 458-462
Protoptila bribri   sp. nov.  Holzenthal, Ralph W. & Blahnik, Roger J., 2006, The caddisfly genus Protoptila in Costa Rica (Trichoptera: Glossosomatidae), Zootaxa 1197, pp. 1-37 : 9-12 9-12
Mortoniella meralda   comb. nov.  Blahnik, Roger J. & Holzenthal, Ralph W., 2008, Revision of the Mexican and Central American species of Mortoniella (Trichoptera: Glossosomatidae: Protoptilinae), Zootaxa 1711 (1), pp. 1-72 : 31-34 31-34
Louteridium costaricense     Daniel, Thomas F. & Tripp, Erin A., 2018, Louteridium (Acanthaceae: Acanthoideae: Ruellieae: Trichantherinae): Taxonomy, Phylogeny, Reproductive Biology, and Conservation, Proceedings of the California Academy of Sciences 65 (2), pp. 41-106 : 75-76 75-76
Basiceros manni     Probst, Rodolfo Da Silva & Brandão, Carlos Roberto Ferreira, 2022, A taxonomic revision of the dirt ants, Basiceros Schulz, 1906 (Hymenoptera, Formicidae), Zootaxa 5149 (1), pp. 1-75 : 35-42 35-42
Chionomus balboae     Weglarz, Kathryn M. & Bartlett, Charles R, 2020, A revision of the planthopper genus Chionomus Fennah (Hemiptera: Fulgoroidea: Delphacidae), Zootaxa 4811 (1), pp. 1-63 : 51 51
Neolindus procarinatus     Guzman, Yoan Camilo, Tokareva, Alexandra, Koszela, Katarzyna & Żyła, Dagmara, 2024, Twenty-one new species of the Neotropical rove beetle genus Neolindus Scheerpeltz (Coleoptera, Staphylinidae, Paederinae), European Journal of Taxonomy 942, pp. 1-76 : 72 72
Orasema longinoi   sp. nov.  Heraty, John M. & Baker, Austin J., 2020, New species of Orasema (Hymenoptera: Eucharitidae) from Central and South America, Journal of Natural History 54 (9), pp. 735-754 : 751-754 751-754
Neolindus basisinuatus     Guzman, Yoan Camilo, Tokareva, Alexandra, Koszela, Katarzyna & Żyła, Dagmara, 2024, Twenty-one new species of the Neotropical rove beetle genus Neolindus Scheerpeltz (Coleoptera, Staphylinidae, Paederinae), European Journal of Taxonomy 942, pp. 1-76 : 70 70
Opsiphanes periphetes   stat. nov.  Piovesan, Mônica, Casagrande, Mirna Martins & Mielke, Olaf Hermann Hendrik, 2022, Systematics of Opsiphanes Doubleday, [1849] (Lepidoptera: Nymphalidae, Satyrinae, Brassolini): an integrative approach, Zootaxa 5216 (1), pp. 1-278 : 222-228 222-228
Metaleptobasis bovilla     Ellenrieder, Natalia Von, 2013, <p> <strong> A revision of <em> Metaleptobasis </ em> Calvert (Odonata: Coenagrionidae) with seven synonymies and the description of eighteen new species from South America </ strong> </ p>, Zootaxa 3738 (1), pp. 1-155 : 22-24 22-24
Procryptocerus     Prado, Lívia P. & Brandão, Carlos Roberto F., 2013, A Catalogue Of Cephalotini Ant Types (Hymenoptera: Formicidae: Myrmicinae) Deposited In The Museu De Zoologia Da Universidade De São Paulo, Brazil, Papéis Avulsos de Zoologia 53 (20), pp. 285-293 : 289-290 289-290
Tricorythodes sordidus     Baumgardner, David E. & Ávila, Socorro, 2006, Cabecar serratus, a new genus and species of leptohyphid mayfly from Central America, and description of the imaginal stages of Tricorythodes sordidus Allen (Ephemeroptera: Leptohyphidae), Zootaxa 1187 (1), pp. 47-59 : 54-57 54-57
Telebasis rojinegra   sp. nov.  Haber, William A., 2020, Telebasis rojinegra (Odonata: Zygoptera: Coenagrionidae) sp. nov. from Costa Rica, Zootaxa 4755 (1), pp. 129-138 : 130 130
Protoptila ixtala     Holzenthal, Ralph W. & Blahnik, Roger J., 2006, The caddisfly genus Protoptila in Costa Rica (Trichoptera: Glossosomatidae), Zootaxa 1197, pp. 1-37 : 19 19
Thaumasia argenteonotata     Cruz Da Silva, Estevam L. & Carico, James E., 2012, 3567, Zootaxa 3567, pp. 1-64 : 9-11 9-11
Azotoctla dasygastra     Cardona-Duque, Juliana & Franz, Nico M., 2012, Description and phylogeny of a new Neotropical genus of Acalyptini (Coleoptera: Curculionidae: Curculioninae) associated with the staminodes of Cyclanthaceae, Zoological Journal of the Linnean Society 166 (3), pp. 559-623 : 606-610 606-610
Ponca venosa     Robillard, Tony & Desutter-Grandcolas, Laure, 2013, Eneopterinae crickets from Costa Rica: an emended list (Orthoptera, Grylloidea), Zoosystema 35 (4), pp. 489-494 : 493 493
Dysmerus symphilus   sp. nov.  Thomas, Michael C., 2009, A review of the genus Dysmerus Casey (Coleoptera: Laemophloeidae), Insecta Mundi 2009 (74), pp. 1-30 : 24-28 24-28
Diochus perplexus     Irmler, Ulrich, 2017, A review of the Neotropical genus Diochus ERICHSON, 1840 (Coleoptera: Staphylinidae: Staphylininae), Beiträge Zur Entomologie = Contributions to Entomology 67 (1), pp. 1-62 : 41-55 41-55
Ecclisister costaericae   stat. nov.  Tishechkin, Alexey K., Kronauer, Daniel J. C. & Beeren, Christoph Von, 2017, Taxonomic Review and Natural History Notes of the Army Ant-Associated Beetle Genus Ecclisister Reichensperger (Coleoptera: Histeridae: Haeteriinae), The Coleopterists Bulletin 71 (2), pp. 279-288 : 281-284 281-284
Chonocephalus dominicanus     Disney, R. H. L., 2008, Review of Neotropical Chonocephalus Wandolleck (Diptera: Phoridae), Zootaxa 1772 (1), pp. 1-54 : 16-18 16-18
Diochus verhaaghi   sp. nov.  Irmler, Ulrich, 2017, A review of the Neotropical genus Diochus ERICHSON, 1840 (Coleoptera: Staphylinidae: Staphylininae), Beiträge Zur Entomologie = Contributions to Entomology 67 (1), pp. 1-62 : 32-34 32-34
Platythyrea     Scott-Santos, Cristiane P., Esteves, Flávia A. & Brandão, Carlos Roberto F., 2008, Catalogue of “ poneromorph ” ant type specimens (Hymenoptera, Formicidae) deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, Papéis Avulsos de Zoologia 48 (11), pp. 75-88 : 75-88 75-88
Cheiloneurus fidenas   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 243-245 243-245
Embates galbinus   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Cheiloneurus myndus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 251-253 251-253
Galeopsomyia blancaensis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 75-77 75-77
Floromadane atrorubens   sp. nov.  Prena, Jens, 2009, Floromadane, a new genus of baridine weevils associated with Rubiaceae in Costa Rica and Panama (Coleoptera: Curculionidae: Baridinae), Beiträge Zur Entomologie = Contributions to Entomology 59 (1), pp. 239-246 : 244 244
Ammonoencyrtus xanthos   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 529-531 529-531
Dalek pleione   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 646-648 646-648
Galeopsomyia aliosa   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 65-67 65-67
Galeopsomyia myrsineae   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 402-403 402-403
Galeopsomyia ingae   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 336-337 336-337
Coccidencyrtus quebrus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 112-113 112-113
Guapinannus falcis   sp. nov.  Frankenberg, Sarah, Knyshov, Alexander, Hoey-Chamberlain, Rochelle & Weirauch, Christiane, 2021, Taxonomic revision of Guapinannus Wygodzinsky, 1951 (Hemiptera: Schizopteridae), with description of 19 new species, Zootaxa 4958 (1), pp. 261-286 : 272 272
Coccidencyrtus tristeryx   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 115-116 115-116
Caldencyrtus antander     Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 633-634 633-634
Trechnites merops     Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 569-570 569-570
Dalek cyclos   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 656-658 656-658
Mendisa gaia   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 667-668 667-668
Phyllocnistis maxberryi   sp. nov.  Kawahara, Akito Y., Nishida, Kenji & Davis, Donald R., 2009, Systematics, host plants, and life histories of three new Phyllocnistis species from the central highlands of Costa Rica (Lepidoptera, Gracillariidae, Phyllocnistinae), ZooKeys 27 (27), pp. 7-30 : 17-20 17-20
Galeopsomyia globosa   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 318-320 318-320
Galeopsomyia miliaris   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 391-392 391-392
Orixia sirus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 148-150 148-150
Myoplatypus prenexus     Kirkendall, Lawrence R. & Atkinson, Thomas H., 2023, The rare genus Myoplatypus (Coleoptera: Curculionidae: Platypodinae): three new species, new reports, and first records for South America, Zootaxa 5351 (3), pp. 301-321 : 314-315 314-315
Galeopsomyia gala   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 107-108 107-108
Galeopsomyia amyra   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 227-229 227-229
Cheiloneurus extillus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 270-271 270-271
Embates callifer   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Galeopsomyia nebulosa   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 408-409 408-409
Galeopsomyia cosidis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 283-285 283-285
Galeopsomyia schefflerae   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 456-457 456-457
Embates peperomiae   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Galeopsomyia picuda   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 444-445 444-445
Cercobelus adrastea   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 613-614 613-614
Esphora rhea   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 677-679 677-679
Sybaguasu cupreum     Groll, Elisa Von, 2017, Catalogue of Coleoptera type specimens housed in the collection of the Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, Brazil, Zootaxa 4318 (3), pp. 439-473 : 454 454
Galeopsomyia clavata   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 274-275 274-275
Leichosila wagneri   sp. nov.  Schmidt, Christian, 2009, A new genus and two new species of arctiine tiger moth (Noctuidae, Arctiinae, Arctiini) from Costa Rica, ZooKeys 9 (9), pp. 89-96 : 95 95
Embates uniformis   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Galeopsomyia doradis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 94-95 94-95
Galeopsomyia lapra   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 126-127 126-127
Cercobelus phanes   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 620-621 620-621
Stenus trifidus     Puthz, Volker, 2016, Übersicht über die neotropischen Arten der Gattung Stenus LATREILLE mit seitlich gerandetem Abdomen und ungelappten Tarsen (Coleoptera, Staphylinidae) 350. Beitrag zur Kenntnis der Steninen, Linzer biologische Beiträge 48 (2), pp. 1551-1634 : 1564-1565 1564-1565
Galeopsomyia marbis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 376-377 376-377
Cercobelus epimetheus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 611-613 611-613
Syringogaster brunnea     Marshall, S. A., Buck, M., Skevington, J. H. & Grimaldi, D., 2009, A revision of the family Syringogastridae (Diptera: Diopsoidea), Zootaxa 1996 (1), pp. 1-80 : 28-30 28-30
Phyllocnistis drimiphaga   sp. nov.  Kawahara, Akito Y., Nishida, Kenji & Davis, Donald R., 2009, Systematics, host plants, and life histories of three new Phyllocnistis species from the central highlands of Costa Rica (Lepidoptera, Gracillariidae, Phyllocnistinae), ZooKeys 27 (27), pp. 7-30 : 12-17 12-17
Phyllocnistis drimiphaga     Prins, Jurate De, Brito, Rosângela & Moreira, Gilson Rudinei Pires, 2016, An annotated taxonomic checklist of the Neotropical Gracillariidae (Lepidoptera) with links to the information on host plants and parasitoids, Zootaxa 4158 (1), pp. 1-51 : 36 36
Labahitha marginata   comb. nov.  Magalhaes, Ivan L. F., Berry, James W., Koh, Joseph K. H. & Gray, Michael R., 2022, Labahitha spiders (Arachnida: Araneae: Filistatidae) from islands in the Indian and Pacific Oceans, European Journal of Taxonomy 805 (1), pp. 1-51 : 24-34 24-34

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Specimens