A new species of Taygetis Hübner, [1819] (Lepidoptera, Nymphalidae, Satyrinae) from southeastern Brazil is described: Taygetis drogoni sp. n. In addition, T. servius Weymer, 1910 and T. fulginia d’Almeida, 1922 are resurrected from synonymy and a taxonomic discussion on the species T. ypthima Hübner, [1821] and T. rectifascia Weymer, 1907 is provided. A dichotomous key for the species is also provided.

Four new species of Pierella

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Resumo: Este trabalho teve como objetivo elaborar uma lista de espécies de borboletas de Matas Paludosas e de Restingas da Planície Costeira do Rio Grande do Sul e de Santa Catarina contribuindo para o conhecimento da fauna de borboletas da Mata Atlântica. Foram compilados dados obtidos com amostragens realizadas através de duas técnicas de coleta (armadilha com isca atrativa e rede entomológica) nos anos de 2005 e 2011. Com um esforço amostral de 10.920 horas com armadilhas e de 360 horas-rede foram encontradas 225 espécies de borboletas nos dois ambientes, distribuídas em seis famílias e 19 subfamílias. Vinte e cinco espécies são registros novos ainda não publicados para o Rio Grande do Sul e 35 espécies são novos registros para a Mata Atlântica do Rio Grande do Sul, sendo seis Nymphalidae, dez Hesperiidae, doze Lycaenidae e sete Riodinidae. Os resultados gerados no presente estudo são fundamentais para o conhecimento e conservação dos táxons estudados bem como dos ambientes aos quais estão associados. Palavras-chave: Mata Atlântica, Parque Estadual de Itapeva, novos registros, riqueza de espécies.

Background: The aim of this study was to synthesize the knowledge of Riodinidae butterflies (Lepidoptera: Papilionoidea) in Rio Grande do Sul state (RS), southern Brazil, evaluating the role of climatic, topographic, and vegetational variables on the observed patterns of occurrence and distribution of these butterflies in the Pampa and Atlantic Forest biomes. The records of riodinid butterflies in RS were collected from published studies and the examination of museum collections in Brazil. Results: A total of 97 taxa of Riodinidae were recorded, distributed in 92 municipalities. The NMDS analysis and the Constrained Analysis of Principal Coordinates grouped the municipalities according to the phytogeographic regions and biomes -Pampa and Atlantic Forest domains -in which the species records were made. Distance from the ocean, precipitation and temperature were the environmental variables which most contributed to explain the distribution patterns of these butterflies. The multivariate Mantel correlogram suggests that over short distances, the composition of species shows significant levels of spatial autocorrelation, and as geographic distance increases, these levels tend to present negative values. Conclusions:The results suggest that the observed distribution pattern of Riodinidae in the different biomes and phytogeographic regions in the extreme southern Brazil could be explained by climatic, environmental variables and geographic distance.

A revision of Godartiana Forster, 1964 (Satyrinae: Euptychiina) is provided, including the description of a new species, G. amadoi Paluch, Zacca & Freitas sp. nov. from Bahia and Pernambuco, northeastern Brazil. Two genera, Cercyeuptychia L. Emmel, 1971 syn. nov. and Praefaunula Forster, 1964 syn. nov., are herein synonymised with Godartiana, based on morphological and molecular data from mitochondrial gene Cytochrome C Oxidase I and the nuclear genes GAPDH and RpS5. A new taxonomic arrangement is proposed for Godartiana, increasing to five the number of species known in this genus and also synonymising Euptychia liturata Butler, 1867 syn. nov. and E. vesper Butler, 1867 syn. nov. with G. armilla (Butler, 1867) comb. nov. The female genitalia of all species of Godartiana are described and illustrated, information is given on host plants and biology, and the previously unknown immature stages of G. muscosa are described and illustrated.

This paper describes four new species of Moneuptychia as follows: M. montana Freitas, M. vitellina Freitas & Barbosa, M. pervagata Freitas, Siewert & Mielke and M. wahlbergi Freitas, Barbosa, Siewert & Mielke from south and southeastern Brazil. Details are presented on the morphology of adults of all species, and immature stages for two species, and we discuss the taxonomy and identification of the genus Moneuptychia. The mitochondrial CoxI "barcode" region was used for exploring the utility of this DNA marker to identify these species, giving strong support for all new species.

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