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opacus, Taxa Only, Exact Match: 100 Treatments

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Ilybius opacus     Sazhnev, A. S., Prokin, A. A. & Sergeev, M. E., 2021, New data on water beetles (Coleoptera: Gyrinidae, Haliplidae, Noteridae, Dytiscidae, Hydrophilidae, Elmidae) of Primorsky Krai (Russia), Russian Entomological Journal 30 (3), pp. 264-274 : 268 268
Gyrinus (Gyrinus) opacus     Budaev, F. A., Eremeeva, N. I., Efimov, D. A. & Zinchenko, V. K., 2019, Water beetles (Coleoptera: Gyrinidae, Noteridae, Dytiscidae) of the forest-steppe of Kemerovo region, Far Eastern Entomologist 382, pp. 13-24 : 15 15
Rhoptromyrmex opacus     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 : 195 195
Probaryconus opacus     Talamas, Elijah J., Masner, Lubomir & Johnson, Norman F., 2012, Paridris Kieffer of the New World (Hymenoptera, Platygastroidea, Platygastridae), ZooKeys 233, pp. 31-90 : 79-80 79-80
Rhoptromyrmex opacus var. esta   n. var.  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 : 59 59
Mycetinis opacus     Petersen, Ronald H. & Hughes, Karen W., 2017, An investigation on Mycetinis (Euagarics, Basidiomycota), MycoKeys 24, pp. 1-138 : 37-40 37-40
Tachygerris opacus     Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, Zootaxa 2958 (1), pp. 1-74 : 9 9
Hylastes opacus   new data on first Canadian and Quebec records  Douglas, Hume, Bouchard, Patrice, Anderson, Robert S., Tonnancour, Pierre de, Vigneault, Robert & Webster, Reginald P., 2013, New Curculionoidea (Coleoptera) records for Canada, ZooKeys 309, pp. 13-48 : 36 36
Ophonus (Calathus) opacus     Ghannem, Samir, Bejaoui, Mustapha, Gahdab, Chakali & Boumaiza, Moncef, 2016, Taxonomic notes on the ground beetles (Coleoptera: Carabidae) of Tunisia., Arquivos Entomolóxicos 15, pp. 65-82 : 80 80
Nacaeus opacus     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 : 170-171 170-171
Tachygerris opacus     Rodrigues, Juliana Mourão Dos Santos, Crumière, Antonin Jean Johan, Mondragón-F, Silvia Patricia, Morales, Irina, Khila, Abderrahman & Moreira, Felipe Ferraz Figueiredo, 2021, Description of a new species and new records of Gerromorpha (Insecta: Hemiptera Heteroptera) from Panama and Colombia, Zootaxa 4958 (1), pp. 226-251 : 248 248
Rhoptromyrmex opacus   n. sp.  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 : 59-61 59-61
Phoenicocoris opacus     SCHWARTZ, MICHAEL D. & STONEDAHL, GARY M., 2004, Revision of Phoenicocoris Reuter with Descriptions of Three New Species from North America and a New Genus from Japan (Heteroptera: Miridae: Phylinae), American Museum Novitates 3464 (1), pp. 1-56 : 27-37 27-37
Gryon opacus     Pintureau, B. & al-Nabhan, M., 2003, New data on the European species of three genera Scelionidae (Hymenoptera)., Zootaxa 238, pp. 1-12 : 2-5 2-5
Tachysphex opacus     Jahantigh, Fatemeh, Rakhshani, Ehsan, Mokhtari, Azizollah & Ramroodi, Sara, 2017, Catalogue of Ampulicidae, Crabronidae and Sphecidae of Iran (Hymenoptera, Apoidea), Zootaxa 4307 (1), pp. 1-96 : 60 60
Tesnus opacus     Herman, Lee H., 2001, Catalog of the Staphylinidae (Insecta: Coleoptera). 1758 to the End of the Second Millennium IV. Staphylinine Group (Part 1) Euaesthetinae, Leptotyphlinae, Megalopsidiinae, Oxyporinae, Pseudopsinae, Solieriinae, Steninae, Bulletin of the American Museum of Natural History 2440 (265), pp. 1807-2440 : 1807-2440 1807-2440
Nacaeus opacus     Asiain, Julieta, Márquez, Juan & Irmler, Urlich, 2015, New national and state records of Neotropical Staphylinidae (Insecta: Coleoptera), Zootaxa 3974 (1) : -1 -1
Falsocis opacus     Lopes-Andrade, Cristiano & Lawrence, John F., 2011, Synopsis of Falsocis Pic (Coleoptera, Ciidae), new species, new records and an identification key, ZooKeys 145, pp. 59-78 : 71 71
Hylastes opacus     Webster, Reginald P., Anderson, Robert S., Sweeney, Jon D. & DeMerchant, Ian, 2012, New Coleoptera records from New Brunswick, Canada: Anthribidae, Brentidae, Dryophthoridae, Brachyceridae, and Curculionidae, with additions to the fauna of Quebec, Nova Scotia and Prince Edward Island, ZooKeys 179, pp. 349-406 : 366 366
Homaeotarsus opacus     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 : 243 243
Plebs opacus   sp. nov.  Joseph, Mathew M. & Framenau, Volker W., 2012, Systematic review of a new orb-weaving spider genus (Araneae: Araneidae), with special reference to the Australasian-Pacific and South-East Asian fauna, Zoological Journal of the Linnean Society 166 (2), pp. 279-341 : 317-320 317-320
Rhoptromyrmex opacus subsp. monodi   n.sbsp.  Bernard, F., 1953, La reserve naturelle integrale du Mt Nimba. XI. Hymenopteres Formicidae., Memoires de l'Institut Francais d'Afrique Noire 19, pp. 165-270 : 251 251
Protonerius opacus   sp. nov.  Sepúlveda, Tatiana A. & Marinoni, Luciane, 2021, New species of Neriidae (Diptera: Schizophora): an addition to the previously monotypic genus Protonerius, Zoologia (e 21013) 38, pp. 1-4 : 2 2
Madecadryinus opacus     C. O, Madl, M. & Olmi, M., 2010, A Catalogue of the Bethylidae, Chrysididae, Dryinidae, Embolemidae, Sclerogibbidae and Scolebythidae (Hymenoptera: Chrysidoidea) of the Malagasy Subregion, Linzer biologische Beiträge 42 (2), pp. 845-918 : 885 885
Paranothrotes opacus subsp. opacus     Ünal, Mustafa, 2016, Pamphagidae (Orthoptera: Acridoidea) from the Palaearctic Region: taxonomy, classification, keys to genera and a review of the tribe Nocarodeini I. Bolívar, Zootaxa 4206 (1), pp. 1-223 : 115-116 115-116
Messatoporus opacus     Aguiar, Alexandre P., Supeleto, Fernanda A., Mendonça Jr, Milton S. & Negrello, Henrique, 2024, New Species, Host Record, and Male Discovery for Three Messatoporus Cushman (Hymenoptera, Ichneumonidae, Cryptinae) from Brazil, Zootaxa 5471 (1), pp. 83-98 : 94-95 94-95
Nacaeus opacus     Asiain, Julieta, Márquez, Juan & Irmler, Urlich, 2015, New national and state records of Neotropical Staphylinidae (Insecta: Coleoptera), Zootaxa 3974 (1) : -1 -1
Microrhagus opacus   sp. nov.  Otto, Robert L., 2015, Eucnemid larvae of the Nearctic region. Part V: Fifth instar larval descriptions for eight species of Microrhagus Dejean, 1833 (Coleoptera: Eucnemidae: Melasinae: Dirhagini), with descriptions of four new species and notes on their biology, Insecta Mundi 2015 (421), pp. 1-46 : 10-11 10-11
Apanteles opacus     Liu, Zhen, He, Jun-Hua, Chen, Xue-Xin & Gupta, Ankita, 2020, The ater-group of the genus Apanteles Foerster (Hymenoptera, Braconidae, Microgastrinae) from China with the descriptions of forty-eight new species, Zootaxa 4807 (1), pp. 1-205 : 127-131 127-131
Hylastes opacus     Mandelshtam, M. Yu. & Petrov, A. V., 2019, A key to species of the tribe Hylastini LeConte, 1876 (Coleoptera: Curculionidae: Scolytinae) from Russia and adjacent countries, Russian Entomological Journal 28 (4), pp. 389-399 : 394 394
Merodon opacus   sp. nov.  Vujic, Ante, Likov, Laura, Radenkovic, Snezana, Tubic, Natasa Kocis, Djan, Mihajla, Sebic, Anja, Perez-Banon, Celeste, Barkalov, Anatolij, Hayat, Ruestem, Rojo, Santos, Andric, Andrijana & Stahls, Gunilla, 2020, Revision of the Merodon serrulatus group (Diptera, Syrphidae), ZooKeys 909, pp. 79-158 : 79 79
Eremippus opacus     Terskov, E. N., 2017, Notes to the fauna and bionomics of grasshoppers (Orthoptera: Acridoidea) of the Taman Peninsula with record of a new species for the Caucasus, Caucasian Entomological Bulletin 13 (1), pp. 15-21 : 18 18
Nacaeus opacus     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 : 58 58
Melanips opacus     Forshage, Mattias, Bowdrey, Jeremy, Broad, Gavin R., Spooner, Brian M. & van Veen, Frank, 2017, Checklist of British and Irish Hymenoptera - Cynipoidea, Biodiversity Data Journal 5, pp. 8049-8049 : 8049 8049
Scrapter opacus     Kuhlmann, Michael, 2021, Taxonomic notes on the bee genus Scrapter LEPELETIER & SERVILLE, 1828, with a checklist to species (Hymenoptera, Anthophila, Colletidae), Linzer biologische Beiträge 53 (2), pp. 699-714 : 701 701
Polistes (Polistella) opacus     Gawas, Sandesh M., Kumar, Girish, Pannure, Arati, Gupta, Ankita & Carpenter, James M., 2020, An annotated distributional checklist of Vespidae (Hymenoptera: Vespoidea) of India, Zootaxa 4784 (1), pp. 1-87 : 49 49
Opius (Opiothorax) opacus     Beyarslan, Ahmet & Fischer, Maximilian, 2013, Checklist of Turkish Opiinae (Hymenoptera, Braconidae), Zootaxa 3721 (5), pp. 401-454 : 434 434
Ochetostethus opacus     Gierlasiński, Grzegorz, Kolago, Grzegorz, Taszakowski, Artur, Miłkowski, Marek, Regner, Jarosław, Kojder, Dariusz, Kowalczyk, Jan Krzysztof, Grzywocz, Janusz, Burda, Martyna, Masłowski, Adrian & Rutkowski, Tomasz, 2023, Przyczynek do rozmieszczenia pluskwiaków różnoskrzydłych (Hemiptera: Heteroptera) w Polsce - V / A contribution to the distribution of true bugs (Hemiptera: Heteroptera) in Poland - V, Heteroptera Poloniae - Acta Faunistica 17, pp. 63-96 : 67 67
Sericomyrmex opacus     Jesovnik, Ana & Schultz, Ted R., 2017, Revision of the fungus-farming ant genus Sericomyrmex Mayr (Hymenoptera, Formicidae, Myrmicinae), ZooKeys 670, pp. 1-109 : 63-72 63-72
Eupelmus (Eupelmus) opacus     Al Khatib, Fadel, Fusu, Lucian, Cruaud, Astrid, Gibson, Gary, Borowiec, Nicolas, Rasplus, Jean-Yves, Ris, Nicolas & Delvare, Gerard, 2015, Availability of eleven species names of Eupelmus (Hymenoptera, Eupelmidae) proposed in Al khatib et al. (2014), ZooKeys 505, pp. 137-145 : 141 141
Opius (Opiothorax) opacus     Gadallah, Neveen S., Ghahari, Hassan, Peris-Felipo, Francisco Javier & Fischer, Maximilian, 2016, Updated checklist of Iranian Opiinae (Hymenoptera: Braconidae), Zootaxa 4066 (1), pp. 1-40 : 18 18
Ophonus (Ophonus) opacus     Ghannem, Samir, Bejaoui, Mustapha, Gahdab, Chakali & Boumaiza, Moncef, 2016, Taxonomic notes on the ground beetles (Coleoptera: Carabidae) of Tunisia., Arquivos Entomolóxicos 15, pp. 65-82 : 75 75
Echiaster opacus     Herman, Lee, 2023, Generic Revisions Of The Scopaeina And The Sphaeronina (Coleoptera: Staphylinidae: Paederinae: Lathrobiini), Bulletin of the American Museum of Natural History 2023 (460), pp. 1-195 : 75 75
Sciotrogus opacus     Herman, Lee H., 2001, Catalog of the Staphylinidae (Insecta: Coleoptera). 1758 to the End of the Second Millennium. I. Introduction, History, Biographical Sketches, and Omaliine Group, Bulletin of the American Museum of Natural History 2001 (265), pp. 1067-1806 : 1067-1806 1067-1806
Diptera   new species  Waltl, Joseph, 1835, Neue Arten von Diptera aus der Umgegend von Munchen, benannt und beschrieben von Meigen, aufgefunden von Dr. J. Waltl., Faunus (Gistel's) 2, pp. 66-72 : 66-72 66-72
Paradrilus opacus     Zapata, José Luis & Sánchez-Ruiz, Antonio, 2018, Nuevas aportaciones al catálogo de la familia Elateridae (Coleoptera) en la Península Ibérica e Islas Baleares, VI., Arquivos Entomolóxicos 19, pp. 11-40 : 13 13
Afrotremex opacus   sp. nov.  Goulet, Henri, 2014, Revision of the African horntail genus Afrotremex (Hymenoptera: Siricidae), Zootaxa 3795 (3), pp. 201-254 : 233-237 233-237
Tachysphex opacus     Straka, Jakub, 2016, Tachysphexaustriacus Kohl, 1892 and T. pompiliformis (Panzer, 1804) (Hymenoptera, Crabronidae) are a complex of fourteen species in Europe and Turkey, ZooKeys 577, pp. 63-123 : 94 94
Phthiracarus (Phthiracarus) opacus     Murvanidze, Maka & Mumladze, Levan, 2016, Annotated checklist of Georgian oribatid mites, Zootaxa 4089 (1), pp. 1-81 : 16 16
Iphthiminus opacus     Gardiner, Rebekka M. & Pollock, Darren A., 2015, Revision of the Nearctic species of the genus Iphthiminus Spilman (Coleoptera: Tenebrionidae), Zootaxa 4048 (3), pp. 352-391 : 362-363 362-363
Stenorhopalus opacus   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 : 156 156
Opius (Opiothorax) opacus     Khajeh, Nahid, Rakhshani, Ehshan, Peris-Felipo, Francisco Javier & Žikić, Vladimir, 2014, Contributions to the Opiinae (Hymenoptera: Braconidae) of Eastern Iran with updated checklist of Iranian species, Zootaxa 3784 (2), pp. 131-147 : 137 137
Chlamydatus (Chlamydatus) opacus     Dubatolov, V. V., Vinokurov, N. N. & Dolgikh, A. M., 2023, Heteroptera (Insecta, Heteroptera) of the Bolshekhetsirsky Nature Reserve, Khabarovsky Krai, Russia, Amurian Zoological Journal XV (2), pp. 435-468 : 449 449
Xyleborus opacus     Smith, Sarah M., Beaver, Roger A., Pham, Thai Hong & Cognato, Anthony I., 2022, New species and new records of Xyleborini from the Oriental region, Japan and Papua New Guinea (Coleoptera: Curculionidae: Scolytinae), Zootaxa 5209 (1), pp. 1-33 : 29 29
Leptochoriolaus opacus     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 : 124 124
Blapstinus opacus     Ivie, Michael A. & Hart, Charles J., 2016, Redefinition ofDiastolinusMulsant and Rey, with a Review of West Indian Blapstinoid Genera (Coleoptera: Tenebrionidae: Opatrini), The Coleopterists Bulletin 70 (3), pp. 447-481 : 447-481 447-481
Pelethiphis opacus     Mašán, Peter & Halliday, Bruce, 2010, Review of the European genera of Eviphididae (Acari: Mesostigmata) and the species occurring in Slovakia 2585, Zootaxa 2585, pp. 1-122 : 70-72 70-72
Miobdelus opacus     He, Liang & Zhou, Hong-Zhang, 2018, Taxonomy of the genus Miobdelus Sharp, 1889 (Coleoptera: Staphylinidae: Staphylinini) and five new species from China, Zootaxa 4377 (3), pp. 301-353 : 351 351
Tachygerris opacus     Morales-C, Irina T. & Castro-Vargas, Maria I., 2013, A new species and new records of Tachygerris Drake, 1957 (Hemiptera: Heteroptera: Gerridae) from Colombia, Zootaxa 3616 (3), pp. 277-283 : 281 281
Rhyparus opacus     Mora-Aguilar, Eder F. & Delgado, Leonardo, 2019, A new Mexican species of Rhyparus Westwood (Coleoptera: Scarabaeidae: Aphodiinae), with new records and a key to the Mexican and Guatemalan species, Zootaxa 4609 (1), pp. 196-200 : 197 197
Trimorus opacus     Buhl, Peter N., Broad, Gavin R. & Notton, David G., 2016, Checklist of British and Irish Hymenoptera - Platygastroidea, Biodiversity Data Journal 4, pp. 7991-7991 : 7991 7991
Eupelmus (Eupelmus) opacus     Gary A. P. Gibson & Lucian Fusu, 2016, Revision of the Palaearctic species of Eupelmus (Eupelmus) Dalman (Hymenoptera: Chalcidoidea: Eupelmidae), Zootaxa 4081 (1), pp. 1-331 : 197-201 197-201
Eleodes opacus     Triplehorn, Charles A., Thomas, Donald B. & Rile, Edward G., 2009, The Genus Eleodes Eschscholtz (Coleoptera: Tenebrionidae) In Texas, The Coleopterists Bulletin 63 (4), pp. 413-437 : 426 426
Eupelmus opacus     Dale-Skey, Natalie, Askew, Richard R., Noyes, John S., Livermore, Laurence & Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Chalcidoidea and Mymarommatoidea, Biodiversity Data Journal 4, pp. 8013-8013 : 8013 8013
Xyloctonus opacus     Jordal, Bjarte H., 2024, Integrated taxonomy, biology and biogeography of the Afrotropical genus Xyloctonus (Coleoptera, Curculionidae, Scolytinae), Deutsche Entomologische Zeitschrift 71 (1), pp. 67-84 : 67 67
Paradrilus opacus     Zapata, José Luis & Sánchez-Ruiz, Antonio, 2013, Nuevas aportaciones al catálogo de la familia Elateridae (Coleoptera) en la Península Ibérica e Islas Baleares, I., Arquivos Entomolóxicos 8, pp. 159-190 : 180-181 180-181
Sphex opacus     Buys, Sandor Christiano, 2022, An overview of cocoon morphology of Sphecidae (Hymenoptera: Apoidea), Journal of Natural History 55 (47 - 48), pp. 2935-2949 : 2940 2940
Andrahomanus opacus   sp. nov.  Kejval, Zbyněk & Cz, Domažlice, 2010, Taxonomic revision of the genus Andrahomanus (Coleoptera: Anthicidae), Acta Entomologica Musei Nationalis Pragae 50 (1), pp. 167-188 : 175-177 175-177
Sciotrogus opacus     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 : 57 57
Schizoprymnus opacus     Abdinbekova, Arifa, Huseynova, Ellada & Kerimova, Ilhama, 2013, Braconidae (Hymenoptera) in the collection of the Institute of Zoology, NAS of Azerbaijan Republic Part III. Subfamilies Helconinae, Brachistinae, Euphorinae, Macrocentrinae (Hymenoptera), Beiträge Zur Entomologie = Contributions to Entomology 63 (2), pp. 271-282 : 275 275
Platyceroides (Platyceroides) opacus     Paulsen, M. J., 2017, Correction of existing generic and species concepts in Platyceroidini (Coleoptera: Lucanidae: Lucaninae) and the description of four new species of Platyceroides Benesh, Zootaxa 4269 (3), pp. 346-378 : 366 366
Trimorus opacus     Buhl, Peter N., Broad, Gavin R. & Notton, David G., 2016, Checklist of British and Irish Hymenoptera - Platygastroidea, Biodiversity Data Journal 4, pp. 7991-7991 : 7991 7991
Macrholaspis opacus     Kontschán, Jenő, 2020, Checklist of the Hungarian species of family Macrochelidae (Acari: Mesostigmata), Acarological Studies 2 (1), pp. 7-17 : 9 9
Sciapus opacus     Kechev, Mihail, Naglis, Stefan, Tonguç, Alper & Pollet, Marc, 2020, Checklist of the Dolichopodidae (Diptera, Empidoidea) of the Balkan Peninsula with first records for Bulgaria, Montenegro, North Macedonia, and for the European part of Turkey, Zootaxa 4819 (3), pp. 436-472 : 461 461
Messatoporus opacus   sp. nov.  Santos, Bernardo F. & Aguiar, Alexandre P., 2013, <strong> Phylogeny and revision of <em> Messatoporus </ em> Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species </ strong>, Zootaxa 3634 (1), pp. 1-284 : 161-163 161-163
Neoxorides opacus   stat. nov.  Johansson, Niklas & Klopfstein, Seraina, 2020, Revision of the Swedish species of Neoxorides Clément, 1938 (Ichneumonidae: Poemeniinae) with the description of a new species and an illustrated key to species, European Journal of Taxonomy 680, pp. 1-29 : 16-20 16-20
Osoriellus opacus   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 : 281 281
Xyleborus opacus   sp. nov.  Smith, Sarah M., Beaver, Roger A. & Cognato, Anthony I., 2020, A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China, ZooKeys 983, pp. 1-442 : 1 1
Meroscelisus opacus     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 : 72 72
Eupelmus opacus     Dale-Skey, Natalie, Askew, Richard R., Noyes, John S., Livermore, Laurence & Broad, Gavin R., 2016, Checklist of British and Irish Hymenoptera - Chalcidoidea and Mymarommatoidea, Biodiversity Data Journal 4, pp. 8013-8013 : 8013 8013
Madecadryinus opacus     Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van, 2019, Dryinidae of the Afrotropical region (Hymenoptera, Chrysidoidea), Zootaxa 4630 (1), pp. 1-619 : 580-581 580-581
Cloeodes opacus   sp. nov.  Nieto, Carolina & Richard, Barton, 2008, The genus Cloeodes (Ephemeroptera: Baetidae) in Argentina with new generic synonymy and new species, Zootaxa 1727, pp. 1-21 : 13 13
Hister opacus     Mazur, Sławomir, 2007, Notes on some species described in the genus Hister L. (Coleoptera: Histeridae). III, Baltic Journal of Coleopterology 7 (2), pp. 149-156 : 154-155 154-155
Conibius opacus     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
Geotrupes opacus     Freese, Edwin L., Veal, Doug A. & Lago, Paul K., 2020, The Scarabaeoidea (Coleoptera) of Iowa: An annotated checklist, Insecta Mundi 2020 (787), pp. 1-83 : 7 7
Purpuricenus opacus     Heffern, Daniel J., Vlasak, Josef & Alten, Ronald L., 2018, Larval Host Plant Records, Distributional Records, and Biological Information on North American Cerambycidae (Coleoptera), The Coleopterists Bulletin 72 (4), pp. 739-750 : 746 746
Carpelimus opacus     Schülke, M., 2009, Zur Taxonomie und Faunistik westpaläarktischer Staphylinidae (Coleoptera: Staphylinidae: Omaliinae, Oxytelinae et Tachyporinae), Linzer biologische Beiträge 41 (1), pp. 803-844 : 824-825 824-825
Sericomyrmex opacus     Mayr, G., 1866, Myrmecologische Beitraege., Sitzungsberichte der Koenigliche Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Classe 53, pp. 484-517 : 23 23
Phthiracarus opacus     Weigmann, G. & Miko, L., 2006, Hornmilben (Oribatida) [pages 102 to 148], Hornmilben (Oribatida) [Dahl, Tierwelt Deutschlands, Teil 76], Keltern: Goecke & Evers, pp. 102-148 : 123 123
Afrotremex opacus     van Noort, Simon & Goulet, Henri, 2015, New distribution records for the rare genus Afrotremex Pasteels (Siricidae: Hymenoptera) and provision of interactive Lucid identification keys to species, Biodiversity Data Journal 3, pp. 7160-7160 : 7160 7160
Helochares opacus     Short, Andrew E. Z. & Fikáček, Martin, 2011, World catalogue of the Hydrophiloidea (Coleoptera): additions and corrections II (2006 - 2010), Acta Entomologica Musei Nationalis Pragae (suppl.) 51 (1), pp. 83-122 : 91 91
Pemphus opacus     Laplante, Serge, 2017, Description of a new Nearctic species of Tragosoma Audinet-Serville (Coleoptera: Cerambycidae: Prioninae), with species validations, new synonymies and a lectotype designation, Insecta Mundi 2017 (578), pp. 1-17 : 8-9 8-9
Hylastes opacus     Karagyan, Gayane, Kalashian, Mark, Ghrejyan, Tigran, Mazmanyan, Meri & Petrov, Аlexander, 2024, Annotated Checklist of Armenian Platypodinae and Scolytinae (Coleoptera: Curculionidae), Zootaxa 5514 (1), pp. 41-65 : 48 48
Limnaeus opacus     Vinarski, Maxim V., 2016, Annotated type catalogue of lymnaeid snails (Mollusca, Gastropoda) in the collection of the Natural History Museum, Berlin, Zoosystematics and Evolution 92 (1), pp. 131-152 : 143 143
Melanips opacus     Forshage, Mattias, Bowdrey, Jeremy, Broad, Gavin R., Spooner, Brian M. & van Veen, Frank, 2017, Checklist of British and Irish Hymenoptera - Cynipoidea, Biodiversity Data Journal 5, pp. 8049-8049 : 8049 8049
Sphex opacus     Dollfuss, H., 2008, The Sphecini Wasps of the Genera Chilosphex BOHART & MENKE, Isodontia PATTON, Palmodes KOHL, Prionyx VANDER LINDEN and Sphex LINNAEUS of the " Biologiezentrum Linz " - Collection in Linz, Austria, (Hymenoptera, Apoidea, Sphecidae), Linzer biologische Beiträge 40 (2), pp. 1399-1434 : 1429 1429
Hemiptera   new species  Eyles, Alan C. Dr. & Carvalho, José C. M., 1991, Revision of the genus Chinamiris Woodward (Hempitera [Hemiptera]: Miridae), New Zealand journal of zoology 18, No. 3, pp. 267-321 : 267-321 267-321
Polistes (Polistella) opacus     Nguyen, Lien Thi Phuong, Kojima, Jun-Ichi & Saito, Fuki, 2011, Polistes (Polistella) wasps (Hymenoptera: Vespidae: Polistinae) from mountainous areas of northern Vietnam, with description of five new species, Zootaxa 3060, pp. 1-30 : 24 24
Pselaphellus opacus     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 : 53 53
Harpaglossus opacus     Ullah, Mishkat, Naeem, Muhammad, Mahmood, Khalid & Garner, Beulah, 2022, Addition to the knowledge of Tribe Chlaeniini Brullé, 1834 (Coleoptera: Carabidae) from Pakistan, Zootaxa 5115 (4), pp. 451-486 : 482-483 482-483

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