-85.98333, 9.966666: 10 Treatments

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Ulmeritoides acosa   sp. nov.  Ávila, Socorro & Flowers, R. Wills, 2005, New species and records of Ulmeritoides (Ephemeroptera: Leptophlebiidae) from Costa Rica, Zootaxa 1010, pp. 1-14 : 2-7 2-7
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
Hebynthus maros   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 : 687-688 687-688
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
Roddenberryus kirk   gen. et sp. nov.  Sánchez-Ruiz, Alexander & Bonaldo, Alexandre B., 2023, Strange new spiders: on Roddenberryus, a new and unusual caponiid genus (Araneae, Caponiidae), European Journal of Taxonomy 891 (1), pp. 1-25 : 8-13 8-13
Chernyshevia escarpiaphila   gen. et sp. nov.  Sagorny, Christina, Döhren, Jörn von, Rouse, Greg W. & Tilic, Ekin, 2022, Cutting the ribbon: bathyal Nemertea from seeps along the Costa Rica margin, with descriptions of 2 new genera and 9 new species, European Journal of Taxonomy 845 (1), pp. 132-174 : 149-152 149-152
Xylocopa (Neoxylocopa) gualanensis     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 : 39-46 39-46
Prostheceraeus fitae   sp. nov.  Soutullo, Patricia, Cuadrado, Daniel & Noreña, Carolina, 2021, First study of the Polycladida (Rhabditophora, Platyhelminthes) from the Pacific Coast of Costa Rica, Zootaxa 4964 (2), pp. 363-381 : 374-376 374-376
Paraplanocera angeli   sp. nov.  Soutullo, Patricia, Cuadrado, Daniel & Noreña, Carolina, 2021, First study of the Polycladida (Rhabditophora, Platyhelminthes) from the Pacific Coast of Costa Rica, Zootaxa 4964 (2), pp. 363-381 : 368-369 368-369
Pseudobiceros bajae     Soutullo, Patricia, Cuadrado, Daniel & Noreña, Carolina, 2021, First study of the Polycladida (Rhabditophora, Platyhelminthes) from the Pacific Coast of Costa Rica, Zootaxa 4964 (2), pp. 363-381 : 373 373