-50.25, -26.25: 10 Treatments

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Tupirinna caraca   sp. nov.  Xavier, Cláudia & Bonaldo, Alexandre B., 2021, Taxonomic revision of the genus Tupirinna Bonaldo, 2000 (Araneae: Corinnidae: Corinninae), Zootaxa 5004 (2), pp. 201-250: 232-234 232-234
Aegla muelleri   n. sp.  Bond-Buckup, Georgina, Jara, Carlos G., Buckup, Ludwig, Pérez-Losada, Marcos, Bueno, Alessandra A. P., Crandall, Keith A. & Santos, Sandro, 2010, New Species And New Records Of Endemic Freshwater Crabs From The Atlantic Forest In Southern Brazil (Anomura: Aeglidae), Journal Of Crustacean Biology 30 (3), pp. 495-502: 498-501 498-501
Cnodalomyia catarinensis   sp. nov.  Lamas, Carlos José Einicker & Mellinger, Gabriela Bastos, 2008, A new species of Cnodalomyia Hull, 1962 (Diptera, Asilidae, Asilinae) from Brazil, Zootaxa 1676 (1), pp. 37-43: 38-41 38-41
Dichotomius (Luederwaldtinia) sericeus     Valois, Marcely C., Vaz-De-Mello, Fernando Z. & Silva, Fernando A. B., 2017, Taxonomic revision of the Dichotomius sericeus (Harold, 1867) species group (Coleoptera: Scarabaeidae: Scarabaeinae), Zootaxa 4277 (4), pp. 503-530: 508-511 508-511
Paracloeodes ibicui     Cruz, Paulo Vilela, Salles, Frederico Falcão & Hamada, Neusa, 2018, Contribution to the taxonomy of Paracloeode s Day 1955 (Ephemeroptera: Baetidae) from South America, Zootaxa 4403 (1), pp. 1-49: 19-25 19-25
Guasuctenus vittatissimus     Polotow, Daniele & Brescovit, Antonio D., 2019, Guasuctenus gen. nov., a new Neotropical spider genus of Ctenidae (Araneae), Zootaxa 4624 (4), pp. 539-550: 546-548 546-548
Zischkaia warreni   sp. nov.  Nakahara, Shinichi, Zacca, Thamara, Dias, Fernando M. S., Dolibaina, Diego R., Xiao, Lei, Espeland, Marianne, Casagrande, Mirna M., Mielke, Olaf H. H., Lamas, Gerardo, Huertas, Blanca, Kleckner, Kaylin & Willmott, Keith R., 2019, Revision of the poorly known Neotropical butterfly genus Zischkaia Forster, 1964 (Lepidoptera, Nymphalidae, Satyrinae), with descriptions of nine new species, European Journal of Taxonomy 551, pp. 1-67: 54-60 54-60
Rineloricaria maacki   new species  Ingenito, Leonardo F. S., Ghazzi, Miriam S., Duboc, Luiz F. & Abilhoa, Vinícius, 2008, Two new species of Rineloricaria (Siluriformes: Loricariidae) from the rio Iguaçu basin, southern Brazil, Neotropical Ichthyology 6 (3), pp. 355-355: 355--1 355--1
Macropygium reticulare     Silva, Layse Mitsue Harada Da & Campos, Luiz Alexandre, 2021, Revision of Macropygium Spinola, 1837 (Hemiptera: Pentatomidae: Ochlerini) with the revalidation of three species and the description of one new species, Zootaxa 4958 (1), pp. 605-627: 612-617 612-617
Meriola lineolata   comb. nov.  González, María E., Grismado, Cristian J. & Ramírez, Martín J., 2021, A Taxonomic Revision Of The Spider Genus Meriola Banks (Araneae: Trachelidae), Zootaxa 4936 (1), pp. 1-113: 50-54 50-54