Checklist of Omophoita Chevrolat, 1836 (Coleoptera: Chrysomelidae: Galerucinae: Alticini) and diagnoses for some species from southern Brazil: notes on the taxonomic history, redescriptions and new records Author Begha, Bruno Piotrovski Universidade Federal de Goiás (UFG), Instituto de Ciências Biológicas (ICB), Departamento de Ecologia (DECOL), Programa de Pós-Graduação em Biodiversidade Animal. Goiânia, GO, Brazil Author Anjos, Camila Alves Dos 0000-0002-0940-9027 Universidade Federal de Goiás (UFG), Instituto de Ciências Biológicas (ICB), Departamento de Ecologia (DECOL), Programa de Pós-Graduação em Biodiversidade Animal. Goiânia, GO, Brazil & camila. adosanjos @ gmail. com; https: // orcid. org / 0000 - 0002 - 0940 - 9027 camila.adosanjos@gmail.com Author Santos, Mateus Henrique 0000-0003-3063-1455 Universidade Federal de Goiás (UFG), Instituto de Ciências Biológicas (ICB), Departamento de Ecologia (DECOL), Programa de Pós-Graduação em Biodiversidade Animal. Goiânia, GO, Brazil & marangonsantos @ gmail. com; https: // orcid. org / 0000 - 0003 - 3063 - 1455 marangonsantos@gmail.com Author Prado, Laura Rocha 0000-0003-1237-2824 Arizona State University, School of Life Sciences, Natural History Collections, 734 W Alameda Dr, Tempe, 85282 Arizona, United States & laurarochaprado @ gmail. com; https: // orcid. org / 0000 - 0003 - 1237 - 2824 laurarochaprado@gmail.com text Zootaxa 2023 2023-10-19 5357 3 375 397 http://dx.doi.org/10.11646/zootaxa.5357.3.3 journal article 274472 10.11646/zootaxa.5357.3.3 70264385-c61b-449c-afa6-5e60aa450ff6 1175-5326 10061420 13D1622C-93E5-4B60-98A1-C1075A1B3C17 Omophoita sesquilunata ab. latitarsis (Bechyné, 1955) ( Figs 7 , 14 , 21 , 25 ) References: Bechyné 1955a: 4 . Refs.: Bechyné 1955b: 9 ; Bechyné 1956a:1039 ; Seeno et al. 1976: 32 ( Homophoeta ); Bechyné & Bechyné’s unpublished catalog: 298, as an aberrant for Omophoita sesquilunata (Klug 1829) . Type ( Holotype ): Omophoita latitarsis ; Bechyné 1955a: 4 . Brazil , Rio de Janeiro , Teresópolis. Collector: St̂cklein. Deposit institution: Naturhistorisches Museum Basel, Switzerland . Length: 8,78–10,54 mm . Head: black. Large pale macula extending to the vertex, rounded. Two pale maculae visible at the lower portion of the frons. Mouthparts: labrum with 10 setae. Antennae: black. Prothorax: pronotum orangish. Metathorax and mesothorax: with the same color as the head. Elytra: elytral integument reddish. Six large rounded pale maculae visible; maculae equidistant, two in the proximal portion of the elytra, two in the median portion and two in the distal portion. Scutellum: triangular, posterior portion rounded. Legs: black. Abdomen: dark brown. Male Aedeagus Median lobe ( Fig. 21 ): apical hood truncated. Ventral sclerite visible in dorsal view; longer than the sides of the median lobe, apex acuminated. Median dorsal process visible; proximal portion of the dorsal median process and apex with subequal width; two wide divergent projections at the apex, triangular-shaped. Dorsal lateral sclerites visible, subtrapezoid, poorly defined. Oblique dorsal process ventrally curved. Female Tignum. ( Fig. 25 ): Base wider than the apex; hood-like structure in the median portion present ( Fig. 4 ); median portion opaque; distal portion slender; apical margins divergent; truncate apex. Specimens studied: BRAZIL : Minas Gerais : Sert „ozinho, Pereira & Medeiros, II.1966 ( IB-SP ); Paraná : Ponta Grossa, Camargo, I.1939 ( MZUSP ); Rio Negro ( IB-SP ); São Paulo : S„o Paulo , Dirings , X.1951 ( MZUSP ) Atibaia , Dirings ii.1961 1 ♁ ( MZUSP ); São Paulo , Guarulhos , Cocaia , No collector, 25.XII.1953 ( MZUSP ); São Paulo , Monte Alegre, L. Trav. F. & Almeida 14–27.X.1942 1 ♁ ( MZUSP ) ; Rio de Janeiro : Itatiaia , Dirings II.1955 2 ♀ ( MZUSP ) ; Rio Grande do Sul : Marcelino Ramos , No collector, 15.XI.1940 ( MZUSP ) ; Santa Catarina : , Timbó , Dirings , XI.1956 ( MZUSP ) . Observed distribution in the Southern Brazil : Paraná ( Rio Negro , Rolandia, Ponta Grossa), Rio Grande do Sul (Marcelino Ramos) and Santa Catarina ( Florianópolis, S „o Bento do Sul, Timbó). ( Fig. 34 ) .