Nymphalidae, Papilionidae e Pieridae (Lepidoptera: Papilionoidea) da Serra do Sudeste do Rio Grande do Sul, Brasil

Abstract

Abstract:To contribute to the knowledge on the composition and distribution of the butterfly fauna of the Southeastern region of Rio Grande do Sul state (RS), five areas at Serra do Sudeste were sampled between April/2003 and January/2004. The species composition of Nymphalidae, Papilionidae and Pieridae was compared with existing records for the contiguous areas at the foot of Serra do Sudeste and the South Coast Plain (Pelotas and surroundings). In a total of 289 net-hours of sampling at Serra do Sudeste, 2.326 individuals in 81 species were recorded: 59 Nymphalidae, 12 Papilionidae and 10 Pieridae. Literature data available for the adjacent areas lists 138 species. Putting both sources together, a total of 152 species are now registered for the Southeast Region of RS: 110 Nymphalidae, 14 Papilionidae and 28 Pieridae. Amongst these species, 14 (9%) occur only in Serra do Sudeste, and 71 (47%) only at the contiguous areas. The results demonstrate the peculiar composition of Serra do Sudeste lepidopterofauna and emphasize the biological importance of this area of Rio Grande do Sul.

Butterflies (Lepidoptera: Papilionoidea and Hesperioidea) from two forest fragments in northern Rio Grande do Sul, Brazil

“…Hesperiidae was the second richest family, often being the largest or one of the richest families, among the inventories carried out in Brazil (Brown Jr. and Freitas 1999;2002), and particularly in Rio Grande do Sul (Mabilde 1896;Marchiori and Romanowsky 2006;Dessuy and Morais 2007, Sack and Morais 2008, Paz et al 2008. Biezanko and Mielke (1973) registered 294 species of Hesperiidae to the state in a survey longer than 30 years, from which, 14 species are present in this survey.…”

“…Several regions do not even have any list of species, or if there is one, it is incomplete, outdated or made using different or not explicit methodologies (Isehard and Romanowski 2004). Recent studies concerning the fauna of butterflies in Rio Grande do Sul characterized study locations and employed methodology more accurately, facilitating comparisons among studies and contributing to knowledge on the geographical distribution of the Neotropical butterflies (Teston and Corseuil 1998;2000a;Iserhard and Romanowski 2004;Quadros et al 2004, Marchiori andRomanowski 2006;Dessuy and Morais 2007;Giovenardi et al 2008;Paz et al 2008;Sack and Morais 2008).…”

Butterflies (Lepidoptera, Papilionoidea and Hesperioidea) of the "Baixada Santista" region, coastal São Paulo, southeastern Brazil

“…Because species of these three groups are difficult to identify, they are also usu-ally undersampled, or not even considered in some studies (e.g. Almeida et al 1986;Paz et al 2008). We believe that a higher numerical dominance of the Hesperiidae is expected in all complete or near-complete butterfly surveys.…”

Borboletas (Lepidoptera: Hesperioidea e Papilionoidea) de fragmentos de Floresta Ombrófila Mista, Rio Grande do Sul, Brasil

“…No período entre maio de 2007 e maio de 2008, foram realizadas seis amostragens bimestrais, através de procura ativa com rede entomológica, durante o percurso de trilhas nos horários de maior atividade das borboletas, entre às 11h30 e 14h30, de acordo com o padrão descrito em Paz et al (2008). O esforço amostral foi de 3h-rede, com três amostradores, totalizando 9 horas em cada área por ocasião amostral.…”