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Opa, Taxa Only, Exact Match: 299 Treatments

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Mieridduryn bonniae   nov. gen. et sp.  Pates, Stephen, Botting, Joseph P., Muir, Lucy A. & Wolfe, Joanna M., 2022, Ordovician opabiniid-like animals and the role of the proboscis in euarthropod head evolution, Nature Communications 13 (1), pp. 1-15 : 2 2
Mieridduryn     Pates, Stephen, Botting, Joseph P., Muir, Lucy A. & Wolfe, Joanna M., 2022, Ordovician opabiniid-like animals and the role of the proboscis in euarthropod head evolution, Nature Communications 13 (1), pp. 1-15 : 2 2
Rhagonycha opaca     Fernández, José Manuel Diéguez, Valcárcel, Javier Peréz & Piloña, Fernando Prieto, 2009, Contribución al conocimiento de los Cantharidae (Coleoptera) de Galicia (N. W. Península Ibérica)., Arquivos Entomolóxicos 2, pp. 25-30 : 28-29 28-29
Lulworthia opaca     Tibell, Sanja, Tibell, Leif, Pang, Ka-Lai & Jones, E. B. Gareth, 2020, A conspectus of the filamentous marine fungi of Sweden, Botanica Marina (Warsaw, Poland) 63 (2), pp. 141-153 : 148 148
Veronica opaca     Stöhr, O., Pilsl, P., Essl, F., Hohla, M. & Schröck, C., 2007, Beiträge zur Flora von Österreich, II, Linzer biologische Beiträge 39 (1), pp. 155-292 : 262 262
Formica opaca     Smith, F., 1858, Catalogue of the hymenopterous insects in the collection of the British Museum. Part VI. Formicidae., London: British Museum : 11 11
Bambara opaca   sp. nov.  Darby, Michael, 2014, Studies of Madagascan Ptiliidae (Coleoptera) 4: The genus Bambara including eight new species and the first account of blindness and aptery in the genus, Zootaxa 3895 (2), pp. 151-169 : 163-164 163-164
Bythinella opaca     Marković, Vanja, Gojšina, Vukašin, Novaković, Boris, Božanić, Milenka, Stojanović, Katarina, Karan-Žnidaršič, Tamara & Živić, Ivana, 2021, The freshwater molluscs of Serbia: Annotated checklist with remarks on distribution and protection status, Zootaxa 5003 (1), pp. 1-64 : 15 15
Pelioptera (Pelioptera) opaca     Pace, Roberto, 2011, Biodiversità delle Aleocharinae della Cina: Athetini, Prima Parte, Generi Lasiosomina, Hydrosmecta, Amischa, Alomaina, Paraloconota, Bellatheta, Nepalota, Pelioptera, Tropimenelytron, Berca e Amphibolusa (Coleoptera, Staphylinidae), Beiträge Zur Entomologie = Contributions to Entomology 61 (1), pp. 155-192 : 175 175
Spilogona opaca     Sorokina, Vеra S., 2018, Eleven new species of Spilogona Schnabl, 1911 (Diptera, Muscidae) from the Altai Mountains of Russia, with key to species, Zootaxa 4410 (2), pp. 201-250 : 242 242
Chaenusa opaca     Broad, Gavin R., Shaw, Mark R. & Godfray, H. Charles J., 2016, Checklist of British and Irish Hymenoptera - Braconidae, Biodiversity Data Journal 4, pp. 8151-8151 : 8151 8151
Stilpnoblatta opaca     Gupta, Sunil Kumar & Chandra, Kailash, 2019, An annotated checklist of cockroaches (Blattodea) from India, Zootaxa 4614 (3), pp. 461-497 : 467 467
Goniaspis opaca   sp. nov.  Mlynarek, Julia J. & Wheeler, Terry A., 2009, Revision of the Neotropical genus Goniaspis Duda (Diptera: Chloropidae), Zootaxa 2033, pp. 26-40 : 33 33
Ochotona opaca     Don E. Wilson, Thomas E. Lacher, Jr & Russell A. Mittermeier, 2016, Ochotonidae, Handbook of the Mammals of the World – Volume 6 Lagomorphs and Rodents I, Barcelona: Lynx Edicions, pp. 28-43 : 38 38
Alchemilla opaca     Info Flora, 2021, Info Flora Schweiz - Rosaceae, https://www.infoflora.ch/de/flora/rosaceae.html (accessed 2023-10-20) : -1 -1
Hoplopera opaca     Houben, Albrecht M., Monnens, Marlies, Proesmans, Willem & Artois, Tom J., 2022, Limnoterrestrial ‘ Typhloplanidae’ (Rhabdocoela, Platyhelminthes), with the description of four new species and a new genus, European Journal of Taxonomy 798, pp. 70-102 : 88-89 88-89
Glyptoma opaca     Asenjo, Angélico, e, Sistemática, de, Bioecologia, Coleoptera, Zoologia, Federal, Universidade, Cep, Curitiba, Irmler, Ulrich, Klimaszewski, Jan, Herman, Lee H. & Chandler, Donald S., 2013, A complete checklist with new records and geographical distribution of the rove beetles (Coleoptera, Staphylinidae) of Brazil, Insecta Mundi 2013 (277), pp. 1-419 : 164 164
Bradysia opaca     Menzel, Frank, Gammelmo, Oivind, Olsen, Kjell Magne & Koehler, Arne, 2020, The Black Fungus Gnats (Diptera, Sciaridae) of Norway - Part I: species records published until December 2019, with an updated checklist, ZooKeys 957, pp. 17-104 : 17 17
Blattodea   new species  Walker, Francis, 1868, Catalogue of the specimens of Blattariae in the collection of the British Museum, British Museum : -1 -1
Nitella opaca     Info Flora, 2021, Info Flora Schweiz - Characeae, https://www.infoflora.ch/de/flora/characeae.html (accessed 2023-10-20) : -1 -1
Leptusa (Adoxopisalia) opaca     Majka, Christopher & Klimaszewski, Jan, 2008, New records of Canadian Aleocharinae (Coleoptera, Staphylinidae), ZooKeys 2 (2), pp. 85-114 : 90 90
Trichina opaca     Zouhair, Laila, Grootaert, Patrick & Kettani, Kawtar, 2022, First records of Trichina Meigen, Euthyneura Macquart and Oedalea Meigen (Diptera, Hybotidae) from North Africa, with descriptions of two new species, ZooKeys 1124, pp. 43-58 : 43 43
Stilpnoblatta opaca     Gupta, Sunil Kumar & Chandra, Kailash, 2019, An annotated checklist of cockroaches (Blattodea) from India, Zootaxa 4614 (3), pp. 461-497 : 475 475
Dryudella opaca     Gadallah, Neveen S., 2020, Biodiversity of the aculeate wasps (Hymenoptera: Aculeata) of the Arabian Peninsula: Apoidea (Spheciformes), Crabronidae, Zootaxa 4754 (1), pp. 20-73 : 20-73 20-73
Coleoptera   new species  D’Alessandro, Paola, Urbani, Fabrizia & Biondi, Maurizio, 2014, Biodiversity and biogeography in Madagascar: revision of the endemic flea beetle genus Neodera Duvivier, 1891 with description of nineteen new species (Coleoptera, Chrysomelidae, Galerucinae, Alticini), Systematic Entomology 39, pp. 710-748 : 710-748 710-748
Iduna opaca     Boano, Giovanni, Belemsobgo, Urbain, Silvano, Fabrizio, Hema, Emmanuel M., Belemsobgo, Aristide, Dimobe, Kangbéni & Pavia, Marco, 2022, An annotated checklist of the birds of Burkina Faso, Zoosystema 44 (2), pp. 27-107 : 82 82
Prionopelta opaca     Shattuck, S. O., 2008, Revision of the ant genus Prionopelta (Hymenoptera: Formicidae) in the Indo-Pacific region., Zootaxa 1846, pp. 21-34 : 29-30 29-30
Mesoneura opaca     Prous, Marko, Liston, Andrew, Kramp, Katja, Savina, Henri, Vardal, Hege & Taeger, Andreas, 2019, The West Palaearctic genera of Nematinae (Hymenoptera, Tenthredinidae), ZooKeys 875, pp. 63-127 : 63 63
Trachelissa opaca     Monné, Miguel A. & Monné, Marcela L., 2016, Checklist of Cerambycidae (Coleoptera) primary types of the Museu Nacional, Rio de Janeiro, Brazil, with a brief history of the collection, Zootaxa 4110 (1), pp. 1-90 : 40 40
Acantholepis opaca     Forel, A., 1894, Les formicides de l'Empire des Indes et de Ceylan. Part IV. Adjonction aux genres Camponotus, Mayr., et Polyrhachis, Shuck., Journal of the Bombay Natural History Society 8, pp. 396-420 : 414 414
Nomada opaca     E, Russia., 2017, The genus Nomada (Hymenoptera: Apidae) in Siberia, Linzer biologische Beiträge 49 (1), pp. 985-1006 : 996 996
Ilex opaca var. opaca     Thornhill, Robert, Krings, Alexander, Lindbo, David & Stucky, Jon, 2014, Guide to the Vascular Flora of the Savannas and Flatwoods of Shaken Creek Preserve and Vicinity (Pender & Onslow Counties, North Carolina, U. S. A.), Biodiversity Data Journal 2, pp. 1099-1099 : 1099 1099
Crematogaster opaca     Ward, Philip S. & Blaimer, Bonnie B., 2022, Taxonomy in the phylogenomic era: species boundaries and phylogenetic relationships among North American ants of the Crematogaster scutellaris group (Formicidae: Hymenoptera), Zoological Journal of the Linnean Society 194, pp. 893-937 : 918-919 918-919
Sternotrigon opaca     Ba, Yi-Bin & Ren, Guo-Dong, 2013, Taxonomy and distribution of Sternotrigon Skopin in China (Coleoptera, Tenebrionidae), Zootaxa 3693 (4), pp. 568-578 : 573 573
Prionopelta opaca     Wild, A. L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)., Zootaxa 1622, pp. 1-55 : 42 42
Dusona opaca     Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Ichneumonidae, Biodiversity Data Journal 4, pp. 9042-9042 : 9042 9042
Bambara opaca     Darby, Michael, 2014, Studies of Madagascan Ptiliidae (Coleoptera) 4: The genus Bambara including eight new species and the first account of blindness and aptery in the genus, Zootaxa 3895 (2), pp. 151-169 : 152 152
Mesoneura opaca     Liston, Andrew D., Knight, Guy T., Sheppard, David A., Broad, Gavin R. & Livermore, Laurence, 2014, Checklist of British and Irish Hymenoptera - Sawflies, ' Symphyta', Biodiversity Data Journal 2, pp. 1168-1168 : 1168 1168
Symmela opaca     Pacheco, Thaynara L., Wipfler, Benedict, Monné, Marcela L. & Ahrens, Dirk, 2022, The genus Symmela Erichson, 1835 (Coleoptera, Scarabaeidae, Sericini): taxonomy and phylogenetic analysis, Journal of Natural History 56 (9 - 12), pp. 607-705 : 674-677 674-677
Tettigades opaca     Sanborn, Allen F. & Heath, Maxine S., 2014, The cicadas of Argentina with new records, a new genus and fifteen new species (Hemiptera: Cicadoidea: Cicadidae), Zootaxa 3883 (1), pp. 1-94 : 87 87
Coleoptera   new species  Will, Kipling W., 2002, Revision of the New World abariform genera Neotalus n. gen. and Abaris Dejean (Coleoptera: Carabidae: Pterostichini (Auctorum )), Annals of the Carnegie Museum 71, No. 3, pp. 143-213 : 182 182
Silpha opaca   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 361 361
Cephaloleia opaca     Sekerka, Lukáš, 2017, Taxonomic changes within Imatidiini and Hybosispini (Coleoptera: Chrysomelidae: Cassidinae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2), pp. 351-380 : 361-362 361-362
Spinoliella opaca     Gonzalez, Victor H., Smith-Pardo, Allan H. & Engel, Michael S., 2017, Phylogenetic Relationships Of A New Genus Of Calliopsine Bees From Peru, With A Review Of Spinoliella Ashmead (Hymenoptera: Andrenidae), Bulletin of the American Museum of Natural History 2017 (412), pp. 1-72 : 45-47 45-47
Aiouea opaca     Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, Adansonia (3) 44 (26), pp. 345-903 : 475 475
Myrmarachne opaca key    Yamasaki, Takeshi & Ahmad, Abdul Hamid, 2013, Taxonomic study of the genus Myrmarachne of Borneo (Araneae: Salticidae), Zootaxa 3710 (6), pp. 501-556 : 503-505 503-505
Pheidole opaca subsp. sarrita   n. subsp.  Forel, A., 1908, Fourmis de Costa-Rica, récoltées par M. Paul Biolley., Bulletin de la Societe Vaudoise des Sciences Naturelles 44, pp. 35-72 : 59 59
Lycinella opaca     Ferreira, Vinicius S. & Ivie, Michael A., 2018, A revision of Lycinella Gorham, 1884 with the description of six new species (Coleoptera, Lycidae, Calopterini), ZooKeys 792, pp. 69-89 : 69 69
Leptusa (Adoxopisalia) opaca     Park, Jong-Seok, Carlton, Christopher E. & Ferro, Michael L., 2010, Diversity and taxonomic review of Leptusa Kraatz (Coleoptera: Staphylinidae: Aleocharinae) from Great Smoky Mountains National Park, U. S. A., with descriptions of four new species, Zootaxa 2662, pp. 1-27 : 3-6 3-6
Trichuris opaca     Muniz-Pereira, Luís C., Vieira, Fabiano M. & Luque, José L., 2009, Checklist of helminth parasites of threatened vertebrate species from Brazil, Zootaxa 2123, pp. 1-45 : 13 13
Neoeme opaca     Monné, Miguel A. & Monné, Marcela L., 2016, Checklist of Cerambycidae (Coleoptera) primary types of the Museu Nacional, Rio de Janeiro, Brazil, with a brief history of the collection, Zootaxa 4110 (1), pp. 1-90 : 26 26
Andrena opaca     Astafurova, Yulia V., Yu, Maxim, Sidorov, Dmitry A. & Osytshnjuk, Anna Z., 2021, The type specimens of bees (Hymenoptera, Apoidea) deposited in the Zoological Institute of the Russian Academy of Sciences, St. Petersburg. Contribution IV. Family Andrenidae, genus Andrena Fabricius, 1775, species described by F. Morawitz, Zootaxa 5037 (1), pp. 1-78 : 46 46
Leptusa (Adoxopisalia) opaca     Gusarov, Vladimir I., 2003, Revision of some types of North American aleocharines (Coleoptera: Staphylinidae: Aleocharinae), with synonymic notes, Zootaxa 353 (1), pp. 1-134 : 118-119 118-119
Dictyonota opaca     Montemayor, I. & Linnavuori, E., 2012, An annotated catalogue of the Iranian Tingidae (Hemiptera: Heteroptera), Zootaxa 3207, pp. 22-39 : 28 28
Javra opaca     Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Ichneumonidae, Biodiversity Data Journal 4, pp. 9042-9042 : 9042 9042
Oxypoda (Oxypoda) opaca     Della Rocca, Francesca, Stefanelli, Silvia, Cardarelli, Elisa, Bogliani, Giuseppe & Bracco, Francesco, 2021, Contribution to the knowledge of the arthropods community inhabiting the winter-flooded meadows (marcite) of northern Italy, Biodiversity Data Journal 9, pp. 57889-57889 : 57889 57889
Alchemilla opaca     Hess, Hans Ernst, Landolt, Elias & Hirzel, Rosmarie, 1976, Flora der Schweiz und angrenzender Gebiete. Band 2. Nymphaceae bis Primulaceae (2 nd edition) (p. 956): Rosaceae, Birkhaeuser Verlag : 324 324
Nokona opaca   sp. nov.  Kallies, Axel, Arita, Yutaka, Owada, Mamoru, Wu, Guo-Yi & Wang, Min, 2014, The Paranthrenini of Mainland China (Lepidoptera, Sesiidae), Zootaxa 3811 (2), pp. 185-206 : 189-190 189-190
Dictyonota opaca     Linnavuori, Rauno E., 2011, Studies on the Cimicomorpha and Pentatomomorpha (Hemiptera: Heteroptera) of Khuzestan and the adjacent provinces of Iran, Acta Entomologica Musei Nationalis Pragae 51 (1), pp. 21-48 : 24 24
Apalonia (Episkiolonia) opaca   sp. nov.  Pace, Roberto, 2015, Introduzione alla conoscenza della sottofamiglia Aleocharinae nella Guyana Francese: Parte V (Coleoptera, Staphylinidae), Beiträge Zur Entomologie = Contributions to Entomology 65 (1), pp. 131-156 : 140 140
Cheilosia opaca     Montoya, Augusto L., 2016, FAMILY SYRPHIDAE, Zootaxa 4122 (1), pp. 457-537 : 461 461
Javra opaca     Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Ichneumonidae, Biodiversity Data Journal 4, pp. 9042-9042 : 9042 9042
Gymnopa opaca     Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, Zootaxa 4989 (1), pp. 1-438 : 111 111
Pristiphora opaca     Prous, Marko, Kramp, Katja & Liston 1, Veli VikbergAndrew, 2017, North-Western Palaearctic species of Pristiphora (Hymenoptera, Tenthredinidae), Journal of Hymenoptera Research 59, pp. 1-190 : 71-72 71-72
Dusona opaca     Horstmann, K., 2011, Verbreitung und Wirte der Dusona-Arten in der Westpaläarktis (Hymenoptera, Ichneumonidae, Campopleginae), Linzer biologische Beiträge 43 (2), pp. 1295-1330 : 1315 1315
Nomada opaca     Lim, Kayun & Lee, Seunghwan, 2023, A key to species of Nomada ruficornis species-group (Hymenoptera: Apidae) of South Korea, with descriptions of three new species, Zootaxa 5228 (1), pp. 44-60 : 55 55
Apenes opaca     Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 803 803
Protaetia (Potosia) opaca     Gasca-Álvarez, Héctor Jaime, Deloya, Cuauhtémoc & Reyes-Castillo, Pedro, 2017, Teratological Cases in Five Species of Cotinis Burmeister (Coleoptera: Scarabaeidae: Cetoniinae: Gymnetini), with a Compilation of Teratologies in Scarabaeoidea, The Coleopterists Bulletin 71 (2), pp. 329-338 : 335 335
Veronica opaca     Info Flora, 2021, Info Flora Schweiz - Plantaginaceae, https://www.infoflora.ch/de/flora/plantaginaceae.html (accessed 2023-10-20) : -1 -1
Galileoana opaca     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 : 21 21
Prionopelta opaca     Radchenko, Alexander G., Fisher, Brian L., Esteves, Flavia A., Martynova, Ekateryna V., Bazhenova, Tatyana N. & Lasarenko, Svetlana N., 2023, Ant type specimens (Hymenoptera, Formicidae) in the collection of Volodymyr Opanasovych Karawajew. Communication 1. Dorylinae, Poneromorpha and Pseudomyrmecinae, Zootaxa 5244 (1), pp. 1-32 : 22 22
Dusona opaca     Riedel, Matthias, Diller, Erich & Japoshvili, George, 2018, The Ichneumonid fauna (Hymenoptera: Ichneumonidae) of Lagodekhi Reserve, Sakartvelo (Georgia), with descriptions of four new species, Linzer biologische Beiträge 50 (2), pp. 1447-1507 : 1453 1453
Pristiphora opaca     Prous, Marko, Vikberg, Veli, Liston, Andrew & Kramp, Katja, 2016, North-Western Palaearctic species of the Pristiphora ruficornis group (Hymenoptera, Tenthredinidae), Journal of Hymenoptera Research 51, pp. 1-54 : 29-30 29-30
Oxypoda opaca     Webster, Reginald, Klimaszewski, Jan, Pelletier, Georges & Savard, Karine, 2009, New Staphylinidae (Coleoptera) records with new collection data from New Brunswick, Canada. I. Aleocharinae, ZooKeys 22 (22), pp. 171-248 : 197-199 197-199
Balcha opaca   sp. nov.  Fusu, Lucian, Park, Duk-Young & Lee, Jong-Wook, 2018, Balcha opaca Fusu sp. n. (Insecta: Hymenoptera): availability of the species name, Journal of Natural History 52 (39 - 40), pp. 2605-2607 : 2606-2607 2606-2607
Ichnea opaca     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 : 41 41
Coleoptera   new species  Kiesenwetter, E. A. H. von, 1874, Die Malacodermen Japans nach dem Ergebnisse der Sammlungen des Herrn G. Lewis während der Jahre 1869 - 1871, Berliner Entomologische Zeitschrift 18, pp. 243-288 : 249 249
Otiocephala opaca     Bezdċk, Jan & Regalin, Renato, 2015, Identity of species-group taxa of the Western Palaearctic Clytrini (Coleoptera: Chrysomelidae) described by Maurice Pic and Louis Kocher, Acta Entomologica Musei Nationalis Pragae (suppl.) 55, pp. 1-114 : 36 36
Turpilia opaca     Yong, Sheyla & Perez-Gelabert, Daniel E., 2014, Grasshoppers, Crickets and Katydids (Insecta: Orthoptera) of Cuba: an annotated checklist, Zootaxa 3827 (4), pp. 401-438 : 427 427
Dasybasis opaca     González, Christian R., Elgueta, Mario, Krolow, Tiago K. & Henriques, Augusto L., 2022, Catalog of the horse-flies (Diptera: Tabanidae) of Chile, Zootaxa 5091 (2), pp. 201-257 : 237 237
Pauropsalta opaca     Owen, Christopher L. & Moulds, Max S., 2016, Systematics and Phylogeny of the Australian Cicada Genus Pauropsalta Goding and Froggatt, 1904 and Allied Genera (Hemiptera: Cicadidae: Cicadettini), Records of the Australian Museum 68 (4), pp. 117-200 : 161-163 161-163
Pleosporales   new species  Jelínek, Josef Dr., 2009, Two New Species of the Genus Platychora ERICHSON (Coleoptera, Nitidu-lidae, Nitidulinae) from Asia, Japanese Journal of Systematic Entomology 15, No. 1, pp. 47-55 : 47 47
Prionochaeta opaca     Telfer, Angela C, Young, Monica R, Quinn, Jenna, Perez, Kate, Sobel, Crystal N, Sones, Jayme E, Levesque-Beaudin, Valerie, Derbyshire, Rachael, Fernandez-Triana, Jose, Rougerie, Rodolphe, Thevanayagam, Abinah, Boskovic, Adrian, Borisenko, Alex V, Cadel, Alex, Brown, Allison, Pages, Anais, Castillo, Anibal H, Nicolai, Annegret, Glenn Mockford, Barb Mockford, Bukowski, Belen, Wilson, Bill, Trojahn, Brock, Lacroix, Carole Ann, Brimblecombe, Chris, Hay, Christoper, Ho, Christmas, Steinke, Claudia, Warne, Connor P, Garrido Cortes, Cristina, Engelking, Daniel, Wright, Danielle, Lijtmaer, Dario A, Gascoigne, David, Hernandez Martich, David, Morningstar, Derek, Neumann, Dirk, Steinke, Dirk, Marco DeBruin, Donna DeBruin, Dobias, Dylan, Sears, Elizabeth, Richard, Ellen, Damstra, Emily, Zakharov, Evgeny V, Laberge, Frederic, Collins, Gemma E, Blagoev, Gergin A, Grainge, Gerrie, Ansell, Graham, Meredith, Greg, Hogg, Ian, McKeown, Jaclyn, Topan, Janet, Bracey, Jason, Guenther, Jerry, Sills-Gilligan, Jesse, Addesi, Joseph, Persi, Joshua, Layton, Kara K S, D'Souza, Kareina, Dorji, Kencho, Grundy, Kevin, Nghidinwa, Kirsti, Ronnenberg, Kylee, Lee, Kyung Min, Xie, Linxi, Lu, Liuqiong, Penev, Lyubomir, Gonzalez, Mailyn, Rosati, Margaret E, Kekkonen, Mari, Kuzmina, Maria, Iskandar, Marianne, Mutanen, Marko, Fatahi, Maryam, Pentinsaari, Mikko, Bauman, Miriam, Nikolova, Nadya, Ivanova, Natalia V, Jones, Nathaniel, Weerasuriya, Nimalka, Monkhouse, Norman, Lavinia, Pablo D, Jannetta, Paul, Hanisch, Priscila E, McMullin, R. Troy, Ojeda Flores, Rafael, Mouttet, Raphaelle, Vender, Reid, Labbee, Renee N, Forsyth, Robert, Lauder, Rob, Dickson, Ross, Kroft, Ruth, Miller, Scott E, MacDonald, Shannon, Panthi, Sishir, Pedersen, Stephanie, Sobek-Swant, Stephanie, Naik, Suresh, Lipinskaya, Tatsiana, Eagalle, Thanushi, Decaens, Thibaud, Kosuth, Thibault, Braukmann, Thomas, Woodcock, Tom, Roslin, Tomas, Zammit, Tony, Campbell, Victoria, Dinca, Vlad, Peneva, Vlada, Hebert, Paul D N & deWaard, Jeremy R, 2015, Biodiversity inventories in high gear: DNA barcoding facilitates a rapid biotic survey of a temperate nature reserve, Biodiversity Data Journal 3, pp. 6313-6313 : 6313 6313
Chrysis opaca     Madl, M. & Rosa, P., 2012, A Catalogue of the Chrysididae (Hymenoptera: Chrysidoidea) of the Ethiopian Region excluding Malagasy Subregion, Linzer biologische Beiträge 44 (1), pp. 5-169 : 59 59
Prionochaeta opaca     Majka, Christopher & Langor, David, 2008, The Leiodidae (Coleoptera) of Atlantic Canada: new records, faunal composition, and zoogeography, ZooKeys 2 (2), pp. 357-402 : 392 392
Coleoptera   new species  Telnov, Dmitry, 2012, New records and new species of Macratriinae from the Papuan region (Insecta: Coleoptera: Anthicidae), Vernate 31, pp. 429-468 : 429-468 429-468
Thinonoma opaca   comb. nov.  Pa ṡnik, Grzegorz, 2006, A revision of the World species of the genus Tachyusa Erichson, 1837 (Coleoptera, Staphylinidae: Aleocharinae), Zootaxa 1146, pp. 1-152 : 147 147
Dorylus (Anomma) emeryi subsp. opaca   n. subsp.  Forel, A., 1909, Fourmis du Musée de Bruxelles. Fourmis de Benguela récoltées par M. Creighton Wellman, et fourmis du Congo récoltées par MM. Luja, Kohl et Laurent., Annales de la Societe Entomologique de Belgique 53, pp. 51-73 : 58 58
Purana opaca   sp. nov.  Lee, Young June, 2009, A checklist of Cicadidae (Insecta: Hemiptera) in Palawan with five new species, Journal of Natural History 43 (41 - 42), pp. 2617-2639 : 2625-2628 2625-2628
Trachelissa opaca   sp. nov.  Quintino, Hingrid Yara S. & Monné, Marcela L., 2014, Revision of Trachelissa Aurivillius, 1912 (Insecta: Coleoptera: Cerambycidae), Zootaxa 3793 (5), pp. 501-537 : 519-520 519-520
Argentinomyia opaca     Montoya, Augusto L. & Wolff, Marta, 2023, Taxonomic revision of the Neotropical genus Argentinomyia Lynch-Arribálzaga, 1891 (Diptera: Syrphidae), with description of 16 new species, Zootaxa 5234 (1), pp. 1-157 : 102-103 102-103
Myrmarachne opaca     Yamasaki, Takeshi & Ahmad, Abdul Hamid, 2013, Taxonomic study of the genus Myrmarachne of Borneo (Araneae: Salticidae), Zootaxa 3710 (6), pp. 501-556 : 546-547 546-547
Heterochromonas opaca     Lee, Won Je & Patterson, David J., 2000, Heterotrophic flagellates (Protista) from marine sediments of Botany Bay, Australia, Journal of Natural History 34, pp. 483-562 : 551 551
Mesoneura opaca     Liston, Andrew D., Knight, Guy T., Sheppard, David A., Broad, Gavin R. & Livermore, Laurence, 2014, Checklist of British and Irish Hymenoptera - Sawflies, ' Symphyta', Biodiversity Data Journal 2, pp. 1168-1168 : 1168 1168
Paludinella opaca     Haase, Martin, Wilke, Thomas & Mildner, Paul, 2007, Identifying species of Bythinella (Caenogastropoda: Rissooidea): A plea for an integrative approach, Zootaxa 1563, pp. 1-16 : 9-11 9-11
Protaetia opaca     Mitter, H., 2011, Bemerkenswerte Käferfunde aus den Familien Glaphyridae und Scarabaeidae aus Marokko (Coleoptera), Linzer biologische Beiträge 43 (2), pp. 1513-1517 : 1516 1516
Aclypea opaca     Ghahari, Hassan, Háva, Jiří, R, Aclypea, M, Dendroxena, L, Necrodes, F, Nicrophorus & L, Phosphuga, 2015, An annotated checklist of the Iranian carrion beetles (Coleoptera: Staphylinoidea: Silphidae), Linzer biologische Beiträge 47 (2), pp. 1501-1511 : 1505 1505
Dictyonota opaca     Heiss, Ernst, Eckelt, Andreas, Lederwasch, Manfred, Unterasinger, Romed & T, Familie, 2022, Die Heteropterensammlung Ernst Heiss im Tiroler Landesmuseum Ferdinandeum. Teil V: Tingoidea, Familie Tingidae LAPORTE, 1832, Linzer biologische Beiträge 54 (1), pp. 85-142 : 107 107
Mynonebra opaca     Barševskis, Arvīds, Barševska, Zeltīte, Vanaga, Anarina, Borodina, Olga, Roze, Liāna, Pilace, Sanda & Mantilla, Leslae Kay Cataytay, 2021, To the knowledge of long-horned beetles (Coleoptera: Cerambycidae) of the Oriental Region (with new synonymy). Part 4, Baltic Journal of Coleopterology 21 (2), pp. 229-247 : 237 237
Blattodea   new species  Walker, Francis, 1868, Catalogue of the specimens of Blattariae in the collection of the British Museum, British Museum : -1 -1
Hajekia opaca   sp. nov.  Colonnelli, Enzo, 2014, Apionidae, Nanophyidae, Brachyceridae and Curculionidae except Scolytinae (Coleoptera) from Socotra Island, Acta Entomologica Musei Nationalis Pragae 54, pp. 295-422 : 316-320 316-320
Chaenusa opaca     Broad, Gavin R., Shaw, Mark R. & Godfray, H. Charles J., 2016, Checklist of British and Irish Hymenoptera - Braconidae, Biodiversity Data Journal 4, pp. 8151-8151 : 8151 8151
Susuacanga opaca     Botero, Juan Pablo, 2014, Review of the genus Susuacanga (Coleoptera, Cerambycidae, Cerambycinae), Zootaxa 3779 (5), pp. 518-528 : 523 523
Diptera   new species  Winnertz, Johannes, 1871, Vierzehn neue Arten der Gattung Sciara, Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 21, pp. 847-860 : 856-857 856-857
Matayba opaca     Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, Adansonia (3) 44 (26), pp. 345-903 : 682 682
Cephaloleia opaca     Staines, Charles L. & Garcia-Robledo, Carlos, 2014, The genus Cephaloleia Chevrolat, 1836 (Coleoptera, Chrysomelidae, Cassidinae), ZooKeys 436, pp. 1-355 : 201-202 201-202
Lepisiota opaca     Harshana, Anand & Dey, Debjani, 2022, Taxonomic studies on the ant genus <i> Lepisiota </ i> Santschi 1926 (Hymenoptera: Formicidae: Formicinae) in India, with description of four new species, Oriental Insects 57 (3), pp. 785-818 : 28-29 28-29
Autosticha opaca     Wang, Yuqi & Wang, Shuxia, 2017, Genus Autosticha Meyrick (Lepidoptera: Autostichidae) from Taiwan, China, Zoological Systematics 42 (4), pp. 508-513 : 512 512
Atopomyrmex mocquerysi subsp. opaca   n. st.  Santschi, F., 1923, Descriptions de nouveaux formicides Ethiopiens et notes diverses. - I., Revue de Zoologie Africaine 11, pp. 259-295 : 283-284 283-284
Dusona opaca     Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Ichneumonidae, Biodiversity Data Journal 4, pp. 9042-9042 : 9042 9042
Epilampra opaca     VIDLIČKA, ĽUBOMÍR, 2013, Cockroaches (Blattaria) of Ecuador-checklist and history of research, Zootaxa 3599 (5), pp. 401-445 : 410 410
Oxypoda (Oxypoda) opaca     Kapp, Andreas, 2022, Beitrag zur Zoogeographie einiger Oxypoda-Arten aus Italien mit Beschreibung einer neuen Art der Untergattung Thliboptera STEPHENS, 1839 (Coleoptera, Staphylinidae, Aleocharinae), Linzer biologische Beiträge 54 (1), pp. 183-193 : 190 190
Pheidole opaca var. incrustata   n. var.  Forel, A., 1908, Fourmis de Costa-Rica, récoltées par M. Paul Biolley., Bulletin de la Societe Vaudoise des Sciences Naturelles 44, pp. 35-72 : 59-60 59-60
Oxypoda (Oxypoda) opaca     Assing, V., 2006, On some species of Oxypoda MANNERHEIM from Turkey and adjacent regions (Insecta: Coleoptera: Staphylinidae Aleocharinae), Linzer biologische Beiträge 38 (1), pp. 277-331 : 305 305
Prionopelta opaca     Wild, Alexander L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae), Zootaxa 1622, pp. 1-55 : 42 42
Mesoneura opaca     Liston, Andrew D., Jacobs, Hans-Joachim & Prous, Marko, 2015, The Sawflies of Crete (Hymenoptera, Symphyta), Deutsche Entomologische Zeitschrift 62 (1), pp. 65-79 : 65 65
Myrmarachne opaca     Benjamin, Suresh P., 2015, Model mimics: antlike jumping spiders of the genus Myrmarachne from Sri Lanka, Journal of Natural History 49 (43), pp. 2609-2666 : 2660 2660
Myrmica opaca     Smith, F., 1861, Catalogue of hymenopterous insects collected by Mr. A. R. Wallace in the Islands of Ceram, Celebes, Ternate, and Gilolo., Journal of the Proceedings of the Linnean Society of London, Zoology 6, pp. 36-48 : 47 47
Epilampra opaca     Evangelista, Dominic A., Chan, Kimberly, Kaplan, Kayla L., Wilson, Megan M. & Ware, Jessica L., 2015, The Blattodeas. s. (Insecta, Dictyoptera) of the Guiana Shield, ZooKeys 475, pp. 37-87 : 42-44 42-44
Oxypoda opaca     Klimaszewski, Jan, Chandler, Donald S., Davies, Anthony & Bourdon, Caroline, 2023, Aleocharine rove beetles of New Hampshire, USA: new taxa and new records (Coleoptera, Staphylinidae, Aleocharinae), Zootaxa 5364 (1), pp. 1-141 : 107 107
Leptusa opaca     Klimaszewski, Jan, Chandler, Donald S., Davies, Anthony & Bourdon, Caroline, 2023, Aleocharine rove beetles of New Hampshire, USA: new taxa and new records (Coleoptera, Staphylinidae, Aleocharinae), Zootaxa 5364 (1), pp. 1-141 : 84 84
Ilex opaca var. opaca     Thornhill, Robert, Krings, Alexander, Lindbo, David & Stucky, Jon, 2014, Guide to the Vascular Flora of the Savannas and Flatwoods of Shaken Creek Preserve and Vicinity (Pender & Onslow Counties, North Carolina, U. S. A.), Biodiversity Data Journal 2, pp. 1099-1099 : 1099 1099
Paratrigona opaca     Gonzalez, Victor H. & Griswold, Terry L., 2011, Two new species of Paratrigona and the male of Paratrigona ornaticeps (Hymenoptera, Apidae), ZooKeys 120, pp. 9-25 : 18 18
Sapromyza opaca     Merz, B. & Kofler, A., 2008, Zur Kenntnis der Lauxaniidae und Pallopteridae (Diptera, Acalyptrata) in Osttirol und Kärnten (Österreich), Linzer biologische Beiträge 40 (2), pp. 1225-1235 : 1230 1230
Pheidole opaca   n. sp.  Mayr, G., 1862, Myrmecologische Studien., Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien 12, pp. 649-776 : 749-750 749-750
Camponotus quadrimaculatus var. opaca   n. var.  Emery, C., 1899, Formiche di Madagascar raccolte dal Sig. A. Mocquerys nei pressi della Baia di Antongil (1897 - 1898)., Bollettino della Societa Entomologica Italiana 31, pp. 263-290 : 290 290
Oxypoda opaca     McLean, John, Klimaszewski, Jan, Li, Agnes & Savard, Karine, 2009, Survey of rove beetles (Coleoptera, Staphylinidae) from Stanley Park, Vancouver, British Columbia, Canada, with new records and description of a new species. Part 1, ZooKeys 22 (22), pp. 5-17 : 12 12
Bambara opaca     Darby, Michael, 2014, Studies of Madagascan Ptiliidae (Coleoptera) 4: The genus Bambara including eight new species and the first account of blindness and aptery in the genus, Zootaxa 3895 (2), pp. 151-169 : 166-169 166-169
Veronica opaca     Hess, Hans Ernst, Landolt, Elias & Hirzel, Rosmarie, 1976, Flora der Schweiz und angrenzender Gebiete. Band 3. Plumbaginaceae bis Compositae (2 nd edition): Scrophulariaceae, Birkhaeuser Verlag : 199 199
Phytomyza opacae     Lonsdale, Owen, 2021, Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states, ZooKeys 1051, pp. 1-481 : 1 1
Aphrodisium (Opacaphrodisium) griffithii     Gupta, Rajeev & Vitali, Francesco, 2017, The checklist of longhorn beetles (Coleoptera: Cerambycidae) from India, Zootaxa 4345 (1), pp. 1-317 : 20 20
Crematogaster (Acrocoelia) opaceipes subsp. cacadaemon     Santschi, F., 1926, Description de nouveaux formicides éthiopiens (IIIme partie)., Revue de Zoologie Africaine 13, pp. 207-267 : 216 216
Aleochara opacella     Navarrete-Heredia, José Luis, Gómez-Rodríguez, Cecilia & Newton, Alfred F., 2006, Staphylinidae (Insecta: Coleoptera) of the Biologia Centrali-Americana: Current status of the names, Zootaxa 1251 (1251), pp. 1-70 : 60 60
Silusa opacella     Navarrete-Heredia, José Luis, Gómez-Rodríguez, Cecilia & Newton, Alfred F., 2006, Staphylinidae (Insecta: Coleoptera) of the Biologia Centrali-Americana: Current status of the names, Zootaxa 1251 (1251), pp. 1-70 : 20 20
Falagria (Myrmecocephalus) opacella     Pace, Roberto, 2010, Biodiversità delle Aleocharinae della Cina: Placusini, Homalotini, Bolitocharini, Eusteniamorphini e Falagriini (Coleoptera, Staphylinidae), Beiträge Zur Entomologie = Contributions to Entomology 60 (1), pp. 259-280 : 274-275 274-275
Rhogogastera opacella     Taeger, Andreas, 2013, The type specimens of Tenthredo Linnaeus, 1758 (Hymenoptera: Tenthredinidae) deposited in the Hungarian Natural History Museum, Zootaxa 3626 (2), pp. 201-244 : 225 225
Elachista opacella     Kaila, Lauri, 2019, An annotated catalogue of Elachistinae of the World (Lepidoptera: Gelechioidea: Elachistidae), Zootaxa 4632 (1), pp. 1-231 : 102 102
Opacibidion opacicolle     Barros, Rafael C., Fonseca, Mailson G., Jardim, Marcelo T., Damiani, Vinicius E. Vendramini Bruno C. B. & Julio, Carlos E. A., 2020, Species of Cerambycinae (Insecta, Coleoptera, Cerambycidae) from east Paraná State (Brazil), with new geographic records, Zootaxa 4845 (1), pp. 1-25 : 15 15
Opacibidion rugicolle     Barros, Rafael C., Fonseca, Mailson G., Jardim, Marcelo T., Damiani, Vinicius E. Vendramini Bruno C. B. & Julio, Carlos E. A., 2020, Species of Cerambycinae (Insecta, Coleoptera, Cerambycidae) from east Paraná State (Brazil), with new geographic records, Zootaxa 4845 (1), pp. 1-25 : 15 15
Opacibidion rugicolle     Ferreira, Gabriel Dos Santos, Ferreira, André Da Silva & Bravo, Freddy, 2023, Annotated checklist of Cerambycidae (Coleoptera: Chrysomeloidea) from the Brazilian semi-arid region, with new species and new geographic records, Zootaxa 5235 (1), pp. 1-81 : 53 53
Cryptoxyleborus opacicaudulus     Beaver, Roger A. & Hulcr, Jiri, 2008, A Review of the Ambrosia Beetle Genus Cryptoxyleborus Schedl (Coleoptera: Curculionidae: Scolytinae), The Coleopterists Bulletin 62 (1), pp. 133-153 : 133-153 133-153
Anotylus opaciceps     Wang, Lin-Fei, Zhou, Hong-Zhang & Lü, Liang, 2017, Revision of the Anotylus sculpturatus group (Coleoptera: Staphylinidae: Oxytelinae) with descriptions of seven new species from China, Zootaxa 4351 (1), pp. 1-79 : 48-49 48-49
Hypoponera opaciceps     Wild, A. L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)., Zootaxa 1622, pp. 1-55 : 54 54
Camponotus opaciceps   nov. sp.  Roger, J., 1863, Die neu aufgeführten Gattungen und Arten meines Formiciden-Verzeichnisses, nebst Ergänzung einiger früher gegeben Beschreibungen., Berliner Entomologische Zeitschrift 7, pp. 131-214 : 141-142 141-142
Atta bisphaerica subsp. opaciceps   n. subsp.  Borgmeier, T., 1939, Nova contribuição para o conhecimento das formigas neotropicais (Hym. Formicidae)., Revista de Entomologia, São Paulo 10, pp. 403-428 : 427 427
Caenohalictus opaciceps     Gonzalez-Vaquero, Rocio Ana & Roig-Alsina, Arturo, 2013, Revision of the species of the bee genus Caenohalictus (Hymenoptera: Halictidae) occurring in Argentinean Patagonia, Zootaxa 3670 (4), pp. 493-515 : 498-502 498-502
Hypoponera opaciceps     Guénard, Benoit, Mccaffrey, Katherine A., Lucky, Andrea & Dunn, Rob R., 2012, Ants of North Carolina: an updated list (Hymenoptera: Formicidae), Zootaxa 3552, pp. 1-36 : 29 29
Ponera opaciceps     Forel, A., 1893, Formicides de l'Antille St. Vincent. Récoltées par Mons. H. H. Smith., Transactions of the Entomological Society of London 1893, pp. 333-418 : 363 363
Hypoponera opaciceps     Wild, Alexander L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae), Zootaxa 1622, pp. 1-55 : 54 54
Stagetillus opaciceps     Maddison, Wayne P., Beattie, Imara, Marathe, Kiran, Ng, Paul Y. C., Kanesharatnam, Nilani, Benjamin, Suresh P. & Kunte, Krushnamegh, 2020, A phylogenetic and taxonomic review of baviine jumping spiders (Araneae, Salticidae, Baviini), ZooKeys 1004, pp. 27-97 : 27 27
Hypoponera opaciceps     Wild, A. L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)., Zootaxa 1622, pp. 1-55 : 39 39
Pseudomyrmex opaciceps   sp. nov.  Ward, Philip S., 1993, Systematic studies on Pseudomyrmex acacia-ants (Hymenoptera: Formicidae: Pseudomyrmecinae), Journal of Hymenoptera Research 2, pp. 117-168 : 159-160 159-160
Hypoponera opaciceps     Ward, P. S., 2005, A synoptic review of the ants of California (Hymenoptera: Formicidae)., Zootaxa 936, pp. 1-68 : -1 -1
Gnomidolon opacicolle     Monné, Miguel A. & Monné, Marcela L., 2016, Checklist of Cerambycidae (Coleoptera) primary types of the Museu Nacional, Rio de Janeiro, Brazil, with a brief history of the collection, Zootaxa 4110 (1), pp. 1-90 : 18 18
Pinophilus opacicollis     Navarrete-Heredia, José Luis, Gómez-Rodríguez, Cecilia & Newton, Alfred F., 2006, Staphylinidae (Insecta: Coleoptera) of the Biologia Centrali-Americana: Current status of the names, Zootaxa 1251 (1251), pp. 1-70 : 50 50
Paraphloeostiba opacicollis     Shavrin, Alexey V., 2022, New species and records of Omaliini McLeay, 1825 from Eastern Palaearctic and Oriental regions (Coleoptera: Staphylinidae: Omaliinae), Zootaxa 5169 (5), pp. 457-471 : 466 466
Alloplandria opacicollis   sp. nov.  Pace, Roberto, 2013, Biodiversità delle Aleocharinae della Cina: Hoplandriini, Aleocharini e Sinanarchusini (Coleoptera, Staphylinidae), Beiträge Zur Entomologie = Contributions to Entomology 63 (1), pp. 5-24 : 9 9
Scopaeus opacicollis   sp. nov.  Bernhauer, Max, 1942, Coleoptera, Staphylinidae Of Guam, Insects of Guam I, Bernice P. Bishop Museum, pp. 41-44 : 43 43
Epectinaspis opacicollis     Zaragoza-Caballero, Santiago, Rodríguez-Mirón, Geovanni M., Vega-Badillo, Viridiana, González-Ramírez, Mireya, Zurita-García, Martín L., Domínguez-León, Daniel E., López-Pérez, Sara, Gutiérrez-Carranza, Ishwari G., Cifuentes-Ruiz, Paulina, Pérez-Hernández, Cisteil X., Valle, Enya Ramírez Del & Gutiérrez, Nayeli, 2019, A checklist of the Coleoptera (Insecta) from Morelos, Mexico, Zootaxa 4580 (1), pp. 1-122 : 45 45
Paraphloeostiba opacicollis     Shavrin, Alexey V., 2020, New species and records of Paraphloeostiba Steel, 1960 from China and Laos and descriptions of four new species of related genera (Coleoptera: Staphylinidae Omaliinae: Omaliini), Zootaxa 4890 (3), pp. 301-329 : 312-313 312-313
Colletes opacicollis     Kuhlmann, M., 2018, Lectotype designation for the South African bee Colletes opacicollis FRIESE, 1909 (Insecta: Hymenoptera: Colletidae), Linzer biologische Beiträge 50 (2), pp. 1255-1258 : 1256-1258 1256-1258
Andrena opacicollis     Astafurova, Yulia V., Yu, Maxim, Sidorov, Dmitry A. & Osytshnjuk, Anna Z., 2021, The type specimens of bees (Hymenoptera, Apoidea) deposited in the Zoological Institute of the Russian Academy of Sciences, St. Petersburg. Contribution IV. Family Andrenidae, genus Andrena Fabricius, 1775, species described by F. Morawitz, Zootaxa 5037 (1), pp. 1-78 : 47 47
Coleoptera   new species  Schaufuss, Ludwig Wilhelm, 1882, Neue Pselaphiden im Museo Civico di Storia Naturale zu Genua, Annali del Museo Civico di Storia Naturale di Genova 18, pp. 349-399 : 369 369
Gymnanthelius opacicollis   sp. nov.  Perkins, Philip D., 2004, A revision of the Australian endemic water beetle genus Gymnanthelius Perkins (Coleoptera: Hydraenidae), Zootaxa 585, pp. 1-39 : 16-18 16-18
Liogenys opacicollis     Cherman, Mariana Alejandra, Basílio, Daniel Silva, Mise, Kleber Makoto, Frisch, Johannes & Almeida, Lúcia Massutti De, 2021, Liogenys Guérin-Méneville, 1831 (Coleoptera: Scarabaeidae: Melolonthinae Diplotaxini) from the Chacoan Province and its boundaries: taxonomic overview with four new species, Zootaxa 4938 (1), pp. 1-59 : 36-39 36-39
Atheta opacicollis     Assing, Volker, 2015, On the identity of Atheta opacicollis (FAUVEL) (Coleoptera: Staphylinidae: Aleocharinae: Oxypodini), Linzer biologische Beiträge 47 (1), pp. 97-100 : 99-100 99-100
Onthophagus (Palaeonthophagus) opacicollis     Ziani, Stefano, Bezděk, Aleš, Branco, Tristão, Hillert, Oliver, Jákl, Stanislav, Král, David, Mantič, Marion, Rössner, Eckehard & Sehnal, Richard, 2015, New country records of Scarabaeoidea (Coleoptera) from the Palaearctic Region, Insecta Mundi 2015 (409), pp. 1-36 : 17 17
Atheta opacicollis     Assing, Volker, 2017, On the Staphylinidae of the Greek island Kos, with an appendix on Carabidae and additional records from other islands (Insecta Coleoptera), Linzer biologische Beiträge 49 (1), pp. 191-205 : 200 200
Oxychalepus opacicollis     Staines, C. L., 2010, A review of the genus Oxychalepus Uhmann, 1937 (Coleoptera: Chrysomelidae: Cassidinae), Zootaxa 2573 (1), pp. 35-56 : 49 49
Rinamba opacicollis     Madl, M. & Achterberg, C. Van, 2014, A catalogue of the Braconidae (Hymenoptera: Ichneumonoidea) of the Malagasy subregion, Linzer biologische Beiträge 46 (1), pp. 5-220 : 96-97 96-97
Microdaccus opacicolor subsp. evavartianae     Azadbakhsh, Saeed & Nozari, Jamasb, 2015, Checklist of the Iranian Ground Beetles (Coleoptera; Carabidae), Zootaxa 4024 (1), pp. 1-108 : 95-96 95-96
Neaneflus opacicornis   comb. nov.  Lingafelter, Steven W., 2022, Revision of Aneflomorpha Casey and Neaneflus Linsley (Coleoptera: Cerambycidae) of the United States with an illustrated key to species, Insecta Mundi 2022 (954), pp. 1-59 : 55-56 55-56
Dolichogenidea opacifinis   sp. nov.  Liu, Zhen, He, Jun-Hua, Chen, Xue-Xin, Gupta, Ankita & Moghaddam, Mostafa Ghafouri, 2019, The ultor - group of the genus Dolichogenidea Viereck (Hymenoptera, Braconidae, Microgastrinae) from China with the descriptions of thirty-nine new species, Zootaxa 4710 (1), pp. 1-134 : 95-97 95-97
Schistochilopsis incisa var. opacifolia     Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2014, Early Land Plants Today: Index of Liverworts & Hornworts 2011 - 2012, Phytotaxa 170 (2), pp. 61-85 : 74 74
Polypodiales   new species  Alderwerelt van Rosenburgh, Capt. C. R. W. K., 1924, Pteriodophyta, Nova Guinea. Contributions to the anthropology, botany, geology and zoology of the Papuan region. Botany 14, pp. 1-72 : 14 14
Asparagales   new species  Smith, Johannes Jacobus, 1915, Die orchideen von Niederlandisch-Neu-Guinea, Nova Guinea. Contributions to the anthropology, botany, geology and zoology of the Papuan region. Botany 12, pp. 173-272 : 279 279
Nomada opaciformis     Risch, Stephan, Roberts, Stuart P. M., Smit, Jan, Wood, Thomas J., Michez, Denis & Reverté, Sara, 2023, The new annotated checklist of the wild bees of Europe (Hymenoptera: Anthophila), Zootaxa 5327 (1), pp. 1-147 : 42 42
Megalopinus opacifrons   sp. nov.  Puthz, V., 2012, Über die neuweltlichen Megalopinus-Arten (Coleoptera, Staphylinidae) (24. Beitrag zur Kenntnis der Megalopsidiinen), Linzer biologische Beiträge 44 (1), pp. 613-834 : 709-710 709-710
Osorius opacifrons     Navarrete-Heredia, José Luis, Gómez-Rodríguez, Cecilia & Newton, Alfred F., 2006, Staphylinidae (Insecta: Coleoptera) of the Biologia Centrali-Americana: Current status of the names, Zootaxa 1251 (1251), pp. 1-70 : 54 54
Opacifrons compacta   sp. nov.  Papp, L., 2012, Five New Afrotropical Species Of Opacifrons (Diptera: Sphaeroceridae), Acta Zoologica Academiae Scientiarum Hungaricae 58 (2), pp. 121-143 : 127-129 127-129
Megachile (Eutricharaea) opacifrons     Lhomme, Patrick, 2020, The wild bees (Hymenoptera: Apoidea) of Morocco, Zootaxa 4892 (1), pp. 1-159 : 105 105
Trichoserica opacifrons     Kaneko, Naoki & Wada, Kaoru, 2020, Catalogue of the type material of Scarabaeoidea (Coleoptera) deposited in the Research Institute of Evolutionary Biology, Tokyo, Japan, ZooKeys 958, pp. 35-89 : 35 35
Opacifrons     Marshall, Stephen A., Roháček, Jindřich, Dong, Hui & Buck, Matthias, 2011, The state of Sphaeroceridae (Diptera: Acalyptratae): a world catalog update covering the years 2000 - 2010, with new generic synonymy, new combinations, and new distributions, Acta Entomologica Musei Nationalis Pragae 51 (1), pp. 217-298 : 252-253 252-253
Megachile opacifrons     Cornalba, Maurizio, Quaranta, Marino, Selis, Marco, Flaminio, Simone, Gamba, Sirio, Mei, Maurizio, Bonifacino, Marco, Cappellari, Andree, Catania, Roberto, Niolu, Pietro, Tempesti, Stefano & Biella, Paolo, 2024, Exploring the hidden riches: Recent remarkable faunistic records and range extensions in the bee fauna of Italy (Hymenoptera, Apoidea, Anthophila), Biodiversity Data Journal 12, pp. 116014-116014 : 116014 116014
Opacifrons afrobrevisecunda   sp. nov.  Papp, L., 2012, Five New Afrotropical Species Of Opacifrons (Diptera: Sphaeroceridae), Acta Zoologica Academiae Scientiarum Hungaricae 58 (2), pp. 121-143 : 124-127 124-127
Maladera opacifrons     Fabrizi, Silvia, Liu, Wan-Gang, Bai, Ming, Yang, Xing-Ke & Ahrens, Dirk, 2021, A monograph of the genus Maladera Mulsant & Rey, 1871 of China (Coleoptera: Scarabaeidae: Melolonthinae: Sericini), Zootaxa 4922 (1), pp. 1-400 : 319-320 319-320
Opacifrons serrata   sp. nov.  Papp, L., 2012, Five New Afrotropical Species Of Opacifrons (Diptera: Sphaeroceridae), Acta Zoologica Academiae Scientiarum Hungaricae 58 (2), pp. 121-143 : 132-134 132-134
Opacifrons subserrata   sp. nov.  Papp, L., 2012, Five New Afrotropical Species Of Opacifrons (Diptera: Sphaeroceridae), Acta Zoologica Academiae Scientiarum Hungaricae 58 (2), pp. 121-143 : 134-140 134-140
Ochthephilum opacifrons     Asenjo, Angélico, e, Sistemática, de, Bioecologia, Coleoptera, Zoologia, Federal, Universidade, Cep, Curitiba, Irmler, Ulrich, Klimaszewski, Jan, Herman, Lee H. & Chandler, Donald S., 2013, A complete checklist with new records and geographical distribution of the rove beetles (Coleoptera, Staphylinidae) of Brazil, Insecta Mundi 2013 (277), pp. 1-419 : 246 246
Opacifrons ghesquierei     Papp, L., 2012, Five New Afrotropical Species Of Opacifrons (Diptera: Sphaeroceridae), Acta Zoologica Academiae Scientiarum Hungaricae 58 (2), pp. 121-143 : 124 124
Opacifrons dilatata   sp. nov.  Papp, L., 2012, Five New Afrotropical Species Of Opacifrons (Diptera: Sphaeroceridae), Acta Zoologica Academiae Scientiarum Hungaricae 58 (2), pp. 121-143 : 129-132 129-132
Opacifrons     Papp, L., 2012, Five New Afrotropical Species Of Opacifrons (Diptera: Sphaeroceridae), Acta Zoologica Academiae Scientiarum Hungaricae 58 (2), pp. 121-143 : 122-123 122-123
Opacifrons coxata     Papp, L., 2012, Five New Afrotropical Species Of Opacifrons (Diptera: Sphaeroceridae), Acta Zoologica Academiae Scientiarum Hungaricae 58 (2), pp. 121-143 : 124 124
Macrophya opacifrontalis   sp. nov.  Li, Ze-Jian, Lei, Zhen, Wang, Jun-Feng & Wei, Mei-Cai, 2014, Three new species of sanguinolenta-group of the genus Macrophya (Hymenoptera: Tenthredinidae) from China, Zoological Systematics 39 (2), pp. 297-308 : 300-302 300-302
Theroscopus opacinotum     Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Ichneumonidae, Biodiversity Data Journal 4, pp. 9042-9042 : 9042 9042
Theroscopus opacinotum     Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Ichneumonidae, Biodiversity Data Journal 4, pp. 9042-9042 : 9042 9042
Osoriellus opacinotus   sp. 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 : 303-304 303-304
Anotylus opacinus     Asenjo, Angélico, e, Sistemática, de, Bioecologia, Coleoptera, Zoologia, Federal, Universidade, Cep, Curitiba, Irmler, Ulrich, Klimaszewski, Jan, Herman, Lee H. & Chandler, Donald S., 2013, A complete checklist with new records and geographical distribution of the rove beetles (Coleoptera, Staphylinidae) of Brazil, Insecta Mundi 2013 (277), pp. 1-419 : 178 178
Ponera trigona var. opacior   n. v.  Forel, A., 1893, Formicides de l'Antille St. Vincent. Récoltées par Mons. H. H. Smith., Transactions of the Entomological Society of London 1893, pp. 333-418 : 363-364 363-364
Hypoponera opacior     Guénard, Benoit, Mccaffrey, Katherine A., Lucky, Andrea & Dunn, Rob R., 2012, Ants of North Carolina: an updated list (Hymenoptera: Formicidae), Zootaxa 3552, pp. 1-36 : 29 29
Hypoponera opacior     Ward, P. S., 2005, A synoptic review of the ants of California (Hymenoptera: Formicidae), Zootaxa 936, pp. 1-68 : 38 38
Monomorium (Xeromyrmex) salomonis subsp. junodi var. opacior     Santschi, F., 1919, Fourmis nouvelles éthiopiennes., Revue de Zoologie Africaine 6, pp. 229-240 : -1 -1
Hypoponera opacior     Ward, P. S., 2005, A synoptic review of the ants of California (Hymenoptera: Formicidae)., Zootaxa 936, pp. 1-68 : -1 -1
Tetropium opacipenne     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 : 112 112
Sindosium opacipenne   new species  Johnson, Colin, 2007, Studies on Ptiliidae (Col.) from the Solomon Islands, 1., Entomologist's monthly magazine 143, pp. 213-226 : 216 216
Uloma opacipennis     Soldati, Laurent, Kergoat, Gael J., Clamens, Anne-Laure, Jourdan, Herve, Jabbour-Zahab, Roula & Condamine, Fabien L., 2014, Integrative taxonomy of New Caledonian beetles: species delimitation and definition of the Uloma isoceroides species group (Coleoptera, Tenebrionidae, Ulomini), with the description of four new species, ZooKeys 415, pp. 133-167 : 152-153 152-153
Neoaliturus (Circulifer) opacipennis     Khatri, Imran & Webb, Michael D., 2010, The Deltocephalinae leafhoppers of Pakistan (Hemiptera, Cicadellidae), Zootaxa 2365, pp. 1-47 : 14 14
Nemognathomimus opacipennis     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 : 130 130
Nausicotus opacipennis     Asenjo, Angélico, e, Sistemática, de, Bioecologia, Coleoptera, Zoologia, Federal, Universidade, Cep, Curitiba, Irmler, Ulrich, Klimaszewski, Jan, Herman, Lee H. & Chandler, Donald S., 2013, A complete checklist with new records and geographical distribution of the rove beetles (Coleoptera, Staphylinidae) of Brazil, Insecta Mundi 2013 (277), pp. 1-419 : 334 334
Leucothyreus opacipennis     Jameson, Mary Liz & Hawkins, Shauna Joy, 2005, Synopsis of the genera of Geniatini (Coleoptera: Scarabaeidae: Rutelinae with an annotated catalog of species), Zootaxa 874 (1), pp. 1-76 : 45 45
Okanagana opacipennis     Sanborn, Allen F., 1999, Cicada (Homoptera: Cicadoidea) Type Material in the Collections of the American Museum of Natural History, California Academy of Sciences, Snow Entomological Museum, Staten Island Institute of Arts and Sciences, and the United States National Museum, The Florida Entomologist 82 (1), pp. 34-60 : 48 48
Aulacophora opacipennis     Lee, Chi-Feng & Beenen, Ron, 2015, Revision of the genus Aulacophora from Taiwan (Coleoptera: Chrysomelidae: Galerucinae), Zootaxa 3949 (2), pp. 151-190 : 176-178 176-178
Othius opacipennis     Assing, Volker, 2015, A revision of Othiini. XIX. Two new species of Othius, the first record of the genus from Vietnam, and additional records (Coleoptera: Staphylinidae: Staphylininae), Linzer biologische Beiträge 47 (2), pp. 1235-1250 : 1241 1241
Agrilus opacipennis     Westcott, Richard L. & Hespenheide, Henry A., 2006, The description of a new species of Agrilus Curtis, with distributional records, and taxonomic and biological notes for Agrilinae and Trachyinae (Coleoptera: Buprestidae) of Mexico and Central America, Zootaxa 1367, pp. 1-35 : 19 19
Harpalus opacipennis     Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 704 704
Ochthebius (Ochthebius) opacipennis     Ghosh, Joyjit, Saini, Jagdish, Gupta, Devanshu, Ghosh, Sujit Kumar & Chandra, Kailash, 2022, A Catalogue of Indian Hydraenidae (Insecta: Coleoptera), Zootaxa 5087 (4), pp. 558-570 : 565 565
Neoaliturus opacipennis     Abdollahi, Tandis, Jalalizand, Ali Reza, Mozaffarian, Fariba & Wilson, Michael, 2015, A faunistic study on the leafhoppers of northwestern Iran (Hemiptera, Cicadellidae), ZooKeys 496, pp. 27-51 : 40 40
Harpalus (Harpalus) opacipennis     Webster, Reginald P. & DeMerchant, Ian, 2012, New Coleoptera records from New Brunswick, Canada: Gyrinidae, Carabidae, and Dytiscidae, ZooKeys 179, pp. 1-10 : 4 4
Ataenius opacipennis     Hielkema, Auke J. & Hielkema, Meindert A., 2019, An annotated checklist of the Scarabaeoidea (Insecta: Coleoptera) of the Guianas, Insecta Mundi 732 (732), pp. 1-306 : 29 29
Oxycheila opacipennis     Wiesner, Jürgen & Bandinelli, Aligi, 2014, Notes on the tiger beetles (Coleoptera: Cicindelidae) of Argentina. 117. Contribution towards the knowledge of Cicindelidae, Insecta Mundi 2014 (377), pp. 1-66 : 3 3
Limonia opacipennis   sp. nov.  Starý, Jaroslav, 2017, Four new species of Limonia from the Mediterranean (Diptera: Limoniidae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2), pp. 713-721 : 716-717 716-717
Dichotomius opacipennis     Vaz-De-Mello, Fernando Z. & Nunes, Rafael V., 2016, New species, redescription and taxonomic notes in the Dichotomius (Luederwaldtinia) batesi (Harold) species-group (Coleoptera: Scarabaeidae: Scarabaeinae), Zootaxa 4139 (2), pp. 294-300 : 298 298
Circulifer opacipennis     Tezcan, S., Gulpercin, N., Zeybekoglu, U. & Karavin, M., 2013, Contribution to the Fulgoromorpha (Cixiidae, Delphacidae) and Cicadomorpha (Aphrophoridae, Cicadidae, Cicadellidae) (Insecta: Hemiptera) fauna of farming terraces in Aspat (Strobilos) ancient city and its territorium, Bodrum, Mu la, western Turkey, Linzer biologische Beiträge 45 (2), pp. 2149-2153 : 2152 2152
Oxycheila opacipennis     Wiesner, Jürgen & Bandinelli, Aligi, 2014, Notes on the tiger beetles (Coleoptera: Cicindelidae) of Argentina. 117. Contribution towards the knowledge of Cicindelidae, Insecta Mundi 2014 (377), pp. 1-66 : 15 15
Prionocerus opacipennis   comb. nov.  Geiser, Michael, 2010, Studies on Prionoceridae (Coleoptera: Cleroidea). II. A revision of the genus Prionocerus Perty, 1831, Zootaxa 2328, pp. 1-48 : 37-39 37-39
Neoaliturus opacipennis     Mozaffarian, Fariba & Wilson, Michael R., 2016, A checklist of the leafhoppers of Iran (Hemiptera: Auchenorrhyncha: Cicadellidae), Zootaxa 4062 (1), pp. 1-63 : 24 24
Nemognathomimus opacipennis     Pérez-Hernández, Cisteil Xinum, 2017, An annotated catalogue of the Coleoptera types deposited in the National Insect Collection (CNIN) of the National Autonomous University of Mexico, Zootaxa 4288 (1), pp. 1-128 : 35 35
Neivamyrmex opacithorax     Guénard, Benoit, Mccaffrey, Katherine A., Lucky, Andrea & Dunn, Rob R., 2012, Ants of North Carolina: an updated list (Hymenoptera: Formicidae), Zootaxa 3552, pp. 1-36 : 12 12
Neivamyrmex opacithorax     Snelling, G. C. & Snelling, R. R., 2007, New synonymy, new species, new keys to Neivamyrmex army ants of the United States., Advances in ant systematics (Hymenoptera: Formicidae): Homage to E. O. Wilson - 50 years of contributions. (Memoirs of the American Entomological Institute 80), pp. 459-550 : 486-487 486-487
Neivamyrmex opacithorax     Ward, P. S., 2005, A synoptic review of the ants of California (Hymenoptera: Formicidae)., Zootaxa 936, pp. 1-68 : -1 -1
Eciton (Acamatus) opacithorax subsp. castaneum   n. v.  Borgmeier, T., 1939, Nova contribuição para o conhecimento das formigas neotropicais (Hym. Formicidae)., Revista de Entomologia, São Paulo 10, pp. 403-428 : 416 416
Procantonnetia opacithorax   sp. nov.  Maruyama, Munetoshi, Matsumoto, Takashi & Itioka, Takao, 2011, Rove beetles (Coleoptera: Staphylinidae) associated with Aenictus laeviceps (Hymenoptera: Formicidae) in Sarawak, Malaysia: Strict host specificity, and first myrmecoid Aleocharini, Zootaxa 3102, pp. 1-26 : 17-19 17-19
Ectatomma opaciventre     Mayr, G., 1866, Myrmecologische Beitraege., Sitzungsberichte der Koenigliche Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Classe 53, pp. 484-517 : 20 20
Ectatomma opaciventre     Wild, A. L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)., Zootaxa 1622, pp. 1-55 : 26 26
Ectatomma opaciventre     DE ALBUQUERQUE, EMÍLIA ZOPPAS, PRADO, LÍVIA PIRES DO, ANDRADE-SILVA, JOUDELLYS, DE SIQUEIRA, EMELY LAIARA SILVA, DA SILVA SAMPAIO, KELLY LIANE, ALVES, DIEGO, BRANDÃO, CARLOS ROBERTO FERREIRA, ANDRADE, PALOMA L., FEITOSA, RODRIGO MACHADO, DE AZEVEDO KOCH, ELMO BORGES, DELABIE, JACQUES HUBERT CHARLES, FERNANDES, ITANNA, BACCARO, FABRÍCIO BEGGIATO, SOUZA, JORGE LUIZ PEREIRA, ALMEIDA, RONY PETERSON SANTOS & SILVA, ROGÉRIO R., 2021, Ants of the State of Pará, Brazil: a historical and comprehensive dataset of a key biodiversity hotspot in the Amazon Basin, Zootaxa 5001 (1), pp. 1-83 : 27 27
Maladera opaciventris   comb. nov.  Fabrizi, Silvia, Liu, Wan-Gang, Bai, Ming, Yang, Xing-Ke & Ahrens, Dirk, 2021, A monograph of the genus Maladera Mulsant & Rey, 1871 of China (Coleoptera: Scarabaeidae: Melolonthinae: Sericini), Zootaxa 4922 (1), pp. 1-400 : 30-31 30-31
Eumaladera opaciventris   comb. nov.  Ahrens, Dirk, 2007, Taxonomic changes and an updated catalogue for the Palaearctic Sericini (Coleoptera: Scarabaeidae: Melolonthinae), Zootaxa 1504, pp. 1-51 : 5-6 5-6
Odontomachus opaciventris     DE ALBUQUERQUE, EMÍLIA ZOPPAS, PRADO, LÍVIA PIRES DO, ANDRADE-SILVA, JOUDELLYS, DE SIQUEIRA, EMELY LAIARA SILVA, DA SILVA SAMPAIO, KELLY LIANE, ALVES, DIEGO, BRANDÃO, CARLOS ROBERTO FERREIRA, ANDRADE, PALOMA L., FEITOSA, RODRIGO MACHADO, DE AZEVEDO KOCH, ELMO BORGES, DELABIE, JACQUES HUBERT CHARLES, FERNANDES, ITANNA, BACCARO, FABRÍCIO BEGGIATO, SOUZA, JORGE LUIZ PEREIRA, ALMEIDA, RONY PETERSON SANTOS & SILVA, ROGÉRIO R., 2021, Ants of the State of Pará, Brazil: a historical and comprehensive dataset of a key biodiversity hotspot in the Amazon Basin, Zootaxa 5001 (1), pp. 1-83 : 64 64
Myrmicaria eumenoides subsp. opaciventris var. congolensis     Wheeler, W. M., 1922, The ants collected by the American Museum Congo Expedition., Bulletin of the American Museum of Natural History 45, pp. 39-269 : 146 146
Camponotus opaciventris     Wachkoo, Aijaz Ahmad & Akbar, Shahid Ali, 2016, First description of the sexuals of Camponotusopaciventris Mayr, 1879 (Hymenoptera, Formicidae), with notes on distribution in Western Himalaya, Biodiversity Data Journal 4, pp. 10464-10464 : 10464 10464
Anochetus opaciventris   new species  Wheeler, W. M., 1922, The ants collected by the American Museum Congo Expedition., Bulletin of the American Museum of Natural History 45, pp. 39-269 : 98-99 98-99
Myrmicaria eumenoides subsp. opaciventris var. crucheti     Wheeler, W. M., 1922, The ants collected by the American Museum Congo Expedition., Bulletin of the American Museum of Natural History 45, pp. 39-269 : 146 146
Lepisiota opaciventris     Sharaf, Mostafa R., Wetterer, James K., Mohamed, Amr A. & Aldawood, Abdulrahman S., 2022, Faunal composition, diversity, and distribution of ants (Hymenoptera: Formicidae) of Dhofar Governorate, Oman, with updated list of the Omani species and remarks on zoogeography, European Journal of Taxonomy 838 (1), pp. 1-106 : 33 33
Camponotus opaciventris     Wachkoo, Aijaz Ahmad & Akbar, Shahid Ali, 2016, First description of the sexuals of Camponotusopaciventris Mayr, 1879 (Hymenoptera, Formicidae), with notes on distribution in Western Himalaya, Biodiversity Data Journal 4, pp. 10464-10464 : 10464 10464
Myrmicaria eumenoides subsp. opaciventris     Wheeler, W. M., 1922, The ants collected by the American Museum Congo Expedition., Bulletin of the American Museum of Natural History 45, pp. 39-269 : 143-145 143-145
Camponotus opaciventris     Subedi, I. P., Budha, P. B., Bharti, H., Alonso, L. & Yamane, S., 2021, First Record Of The Ant Subgenus Orthonotomyrmex Of The Genus Camponotus From Nepal (Hymenoptera, Formicidae), Zoodiversity 55 (4), pp. 279-284 : 281 281
Lepisiota opaciventris     Cedric A. Collingwood, Donat Agosti, Mostafa R. Sharaf & Antonius van Harten, 2011, Order Hymenoptera, family Formicidae, Arthropod fauna of the UAE 4, pp. 1-70 : 63 63
Myrmicaria opaciventris     Forel, A., 1909, Fourmis du Musée de Bruxelles. Fourmis de Benguela récoltées par M. Creighton Wellman, et fourmis du Congo récoltées par MM. Luja, Kohl et Laurent., Annales de la Societe Entomologique de Belgique 53, pp. 51-73 : 54 54
Heteroderes opacoflavus     Hoffmannova, Johana, Packova, Gabriela, Prosvirov, Alexander S., Akhter, Muhammad Atique & Kundrata, Robin, 2023, An updated catalogue of Agrypninae (Coleoptera: Elateridae) from Pakistan, Zootaxa 5270 (2), pp. 281-305 : 297 297
Halictus opaconitens     Astafurova, Yulia V. & Yu, Maxim, 2018, The type specimens of bees (Hymenoptera, Apoidea) deposited in the Zoological Institute of the Russian Academy of Sciences, St. Petersburg. Contribution I. Family Halictidae, genus Lasioglossum Curtis, 1833, Zootaxa 4408 (1), pp. 1-66 : 33-34 33-34
Ephysteris (Opacopsis) iberica     Bidzilya, Oleksiy, Karsholt, Ole, Kravchenko, Vasiliy & Šumpich, Jan, 2019, An annotated checklist of Gelechiidae (Lepidoptera) of Israel with description of two new species, Zootaxa 4677 (1), pp. 1-68 : 54 54
Opacoptera condensata   sp. nov.  Yu, Shuai & Wang, Shuxia, 2023, Opacoptera Gozmany (Lepidoptera, Lecithoceridae) from China, with descriptions of four new species, ZooKeys 1158, pp. 133-146 : 133 133
Opacoptera hybocentra   sp. nov.  Yu, Shuai & Wang, Shuxia, 2023, Opacoptera Gozmany (Lepidoptera, Lecithoceridae) from China, with descriptions of four new species, ZooKeys 1158, pp. 133-146 : 133 133
Opacoptera flavicana     Yu, Shuai & Wang, Shuxia, 2023, Opacoptera Gozmany (Lepidoptera, Lecithoceridae) from China, with descriptions of four new species, ZooKeys 1158, pp. 133-146 : 133 133
Opacoptera kerastiodes     Yu, Shuai & Wang, Shuxia, 2023, Opacoptera Gozmany (Lepidoptera, Lecithoceridae) from China, with descriptions of four new species, ZooKeys 1158, pp. 133-146 : 133 133
Opacoptera ecblasta     Yu, Shuai & Wang, Shuxia, 2023, Opacoptera Gozmany (Lepidoptera, Lecithoceridae) from China, with descriptions of four new species, ZooKeys 1158, pp. 133-146 : 133 133
Opacoptera     Yu, Shuai & Wang, Shuxia, 2023, Opacoptera Gozmany (Lepidoptera, Lecithoceridae) from China, with descriptions of four new species, ZooKeys 1158, pp. 133-146 : 133 133
Opacoptera longissima   sp. nov.  Yu, Shuai & Wang, Shuxia, 2023, Opacoptera Gozmany (Lepidoptera, Lecithoceridae) from China, with descriptions of four new species, ZooKeys 1158, pp. 133-146 : 133 133
Opacoptera introflexa   sp. nov.  Yu, Shuai & Wang, Shuxia, 2023, Opacoptera Gozmany (Lepidoptera, Lecithoceridae) from China, with descriptions of four new species, ZooKeys 1158, pp. 133-146 : 133 133
Opacoptera callirrhabda     Yu, Shuai & Wang, Shuxia, 2023, Opacoptera Gozmany (Lepidoptera, Lecithoceridae) from China, with descriptions of four new species, ZooKeys 1158, pp. 133-146 : 133 133
Prothyma (Symplecthyma) coerulea subsp. opacosericea     Anichtchenko, Alexander & Wiesner, Jürgen, 2023, Philippine species of the genus Prothyma Hope, 1838 (Coleoptera: Cicindelidae). Part 2. Subgenus Symplecthyma Rivalier, 1964, Zootaxa 5357 (1), pp. 71-99 : 82-83 82-83
Opacuincola gretathunbergae   sp. nov.  Verhaegen, Gerlien & Haase, Martin, 2021, All-inclusive descriptions of new freshwater snail taxa of the hyperdiverse family Tateidae (Gastropoda, Caenogastropoda) from the South Island of New Zealand, European Journal of Taxonomy 731, pp. 71-96 : 86-87 86-87
Opacuincola mete subsp. kahurangi   subsp. nov.  Verhaegen, Gerlien & Haase, Martin, 2021, All-inclusive descriptions of new freshwater snail taxa of the hyperdiverse family Tateidae (Gastropoda, Caenogastropoda) from the South Island of New Zealand, European Journal of Taxonomy 731, pp. 71-96 : 88-89 88-89
Opacuincola lisannea   sp. nov.  Verhaegen, Gerlien & Haase, Martin, 2021, All-inclusive descriptions of new freshwater snail taxa of the hyperdiverse family Tateidae (Gastropoda, Caenogastropoda) from the South Island of New Zealand, European Journal of Taxonomy 731, pp. 71-96 : 82-84 82-84
Netelia (Netelia) opacula     Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, Linzer biologische Beiträge 55 (1), pp. 61-153 : 133 133
Saldula opacula     Vinokurov, Nikolay N. & Kment, Petr, 2015, Contribution to the faunistics of shore bugs (Hemiptera: Heteroptera: Leptopodomorpha) in the Palaearctic Region and the Himalayas, Zootaxa 4028 (3), pp. 367-387 : 377 377
Netelia (Netelia) opacula     Kolarov, J., 2008, A Catalogue of the [former] Yugoslavian Ichneumonidae (Hymenoptera, Insecta), Linzer biologische Beiträge 40 (2), pp. 1585-1739 : 1710 1710
Netelia (Netelia) opacula     Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, Linzer biologische Beiträge 55 (1), pp. 61-153 : 133 133
Saldula opacula     Fent, Meral, Kment, Petr, Çamur-Elipek, Belgin & Kirgiz, Timur, 2011, Annotated catalogue of Enicocephalomorpha, Dipsocoromorpha, Nepomorpha, Gerromorpha, and Leptopodomorpha (Hemiptera: Heteroptera) of Turkey, with new records 2856, Zootaxa 2856 (1), pp. 1-84 : 52 52
Stenagria opacula     Navarrete-Heredia, José Luis, Gómez-Rodríguez, Cecilia & Newton, Alfred F., 2006, Staphylinidae (Insecta: Coleoptera) of the Biologia Centrali-Americana: Current status of the names, Zootaxa 1251 (1251), pp. 1-70 : 18 18
Netelia (Netelia) opacula     Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Ichneumonidae, Biodiversity Data Journal 4, pp. 9042-9042 : 9042 9042
Acmaeodera opacula     Hansen, Jason A. & Westcott, Richard L., 2023, A new synonym of Acmaeodera opacula LeConte, 1858 (Coleoptera: Buprestidae) and lectotype designations for Acmaeodera amabilis Horn, 1878 and Acmaeodera disjuncta Fall, 1899, Insecta Mundi 2023 (984), pp. 1-4 : 2-3 2-3
Netelia (Netelia) opacula     Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Ichneumonidae, Biodiversity Data Journal 4, pp. 9042-9042 : 9042 9042
Megachile opaculina     Eardley, Connal, 2012, 3601, Zootaxa 3601, pp. 1-133 : 114 114
Megachile (Eurymella) opaculina     Nkulu, Alain Tshibungu, Pauly, Alain, Dorchin, Achik & Vereecken, Nicolas J., 2023, The Megachilidae (Hymenoptera, Apoidea, Apiformes) of the Democratic Republic of Congo curated at the Royal Museum for Central Africa (RMCA, Belgium), Zootaxa 5392 (1), pp. 1-103 : 30 30
Agrypon opaculum     Schnee, Heinz, 2018, Typenrevision der von HELLÉN beschriebenen Anomaloninae (Hymenoptera, Ichneumonidae) und Übersicht über die finnischen Arten, Beiträge Zur Entomologie = Contributions to Entomology 68 (1), pp. 151-175 : 161 161
Distremocephalus opaculus     Johnston, M. Andrew, Waite, Evan S., Wright, Ethan R, Reily, Brian H., De Leon, Gilma Juanita, Esquivel, Angela Iran, Kerwin, Jacob, Salazar, Maria, Sarmiento, Emiliano, Thiatmaja, Tommy, Lee, Sangmi, Yule, Kelsey & Franz, Nico, 2023, Insect collecting bias in Arizona with a preliminary checklist of the beetles from the Sand Tank Mountains, Biodiversity Data Journal 11, pp. 101960-101960 : 101960 101960
Anisodactylus opaculus     Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 648 648
Carabus opaculus     Baumann, Julia, 2018, Tiny mites on a great journey - a review on scutacarid mites as phoronts and inquilines (Heterostigmatina, Pygmephoroidea, Scutacaridae), Acarologia 58 (1), pp. 192-251 : 229 229
Bledius opaculus     Majka, Christopher, Klimaszewski, Jan & Lauff, Randolph, 2008, The coastal rove beetles (Coleoptera, Staphylinidae) of Atlantic Canada: a survey and new records, ZooKeys 2 (2), pp. 115-150 : 131 131
Gastrisus opaculus     Navarrete-Heredia, José Luis, Gómez-Rodríguez, Cecilia & Newton, Alfred F., 2006, Staphylinidae (Insecta: Coleoptera) of the Biologia Centrali-Americana: Current status of the names, Zootaxa 1251 (1251), pp. 1-70 : 26 26
Platylabus opaculus     Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Ichneumonidae, Biodiversity Data Journal 4, pp. 9042-9042 : 9042 9042
Odontomachus opaculus     Radchenko, Alexander G., Fisher, Brian L., Esteves, Flavia A., Martynova, Ekateryna V., Bazhenova, Tatyana N. & Lasarenko, Svetlana N., 2023, Ant type specimens (Hymenoptera, Formicidae) in the collection of Volodymyr Opanasovych Karawajew. Communication 1. Dorylinae, Poneromorpha and Pseudomyrmecinae, Zootaxa 5244 (1), pp. 1-32 : 20 20
Coleoptera   new species  Zimmermann, C. C. A., 1832, Einige Worte über die Gattung Masoreus., Fauna Z Zool Anat 1, pp. 119-121 : 120 120
Platylabus opaculus     Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Ichneumonidae, Biodiversity Data Journal 4, pp. 9042-9042 : 9042 9042
Sunius opaculus     Navarrete-Heredia, José Luis, Gómez-Rodríguez, Cecilia & Newton, Alfred F., 2006, Staphylinidae (Insecta: Coleoptera) of the Biologia Centrali-Americana: Current status of the names, Zootaxa 1251 (1251), pp. 1-70 : 48 48
Platylabus opaculus subsp. americanus     Dal Pos, Davide, Heilman, Victoria & Welter-Schultes, Francisco, 2022, Platylabini (Hymenoptera: Ichneumonidae: Ichneumoninae) of the south-eastern United States: new distributional data, taxonomic notes, illustrated keys, and an annotated catalogue of the genera and species, Journal of Natural History 56, pp. 1869-1938 : 1911-1913 1911-1913
Calathus opaculus     Majka, Christopher G., Bousquet, Yves & Westby, Susan, 2007, The ground beetles (Coleoptera: Carabidae) of the Maritime Provinces of Canada: review of collecting, new records, and observations on composition, zoogeography, and historical origins, Zootaxa 1590, pp. 1-36 : 11 11
Aeoloides opaculus   comb. nov.  Girard, Claude, 2003, Étude des peuplements d’Elateridae (Coleoptera) de la région du mont Nimba et descriptions de taxons nouveaux, Mémoires du Muséum national d'Histoire naturelle 190, pp. 393-550 : 436 436
Pityophthorus opaculus     Popa, Valentin, Morneau, Louis, Piche, Celine, Deshaies, Andre, Bauce, Eric & Guertin, Claude, 2013, Occurrence of species of the genus Pityophthorus Eichhoff (Coleoptera, Curculionidae, Scolytinae) in the province of Quebec, Canada, ZooKeys 348, pp. 97-124 : 110-111 110-111
Platynus opaculus     Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 774-775 774-775
Platylabus opaculus     Riedel, Matthias, 2020, Contribution to the knowledge of Ichneumoninae of Siberia and Far East Russia (Hymenoptera, Ichneumonidae), Beiträge Zur Entomologie = Contributions to Entomology 70 (2), pp. 365-386 : 368 368
Bledius opaculus     Webster, Reginald P., Davies, Anthony E., Klimaszewski, Jan & Bourdon, Caroline, 2016, Further contributions to the staphylinid fauna of New Brunswick, Canada, and the USA, with descriptions of two new Proteinus species (Coleoptera, Staphylinidae), ZooKeys 573, pp. 31-83 : 47 47
Odontomachus opaculus   n. status  Wilson EO, 1959, Studies on the ant fauna of Melanesia V. The tribe Odontomachini., Bulletin of the Museum of Comparative Zoology 120, pp. 483-510 : 496 496
Grasseiteles opaculus     Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Ichneumonidae, Biodiversity Data Journal 4, pp. 9042-9042 : 9042 9042
Calathus opaculus     Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 726 726
Platylabus opaculus     Riedel, M., 2007, Revision des in Stockholm, Lund und Paris vorhandenen Typenmaterials der Tribus Platylabini (Hymenoptera, Ichneumonidae, Ichneumoninae), Linzer biologische Beiträge 39 (1), pp. 521-530 : 525-526 525-526
Grasseiteles opaculus     Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Ichneumonidae, Biodiversity Data Journal 4, pp. 9042-9042 : 9042 9042
Lyrosoma opacum     Yoo, In-Seong, Sikes, Derek & Ahn, Kee-Jeong, 2013, A redescripton of Lyrosoma pallidum (Eschscholtz) and distributional range extension of Lyrosoma Mannerheim (Coleoptera, Agyrtidae), ZooKeys 329, pp. 23-32 : 27-29 27-29

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