Description of a Neotropical New Species of OxysarcodexiaTownsend, 1917 (Diptera: Sarcophagidae)

Abstract

Abstract. A new species of Oxysarcodexia Townsend, 1917 (Diptera: Sarcophagidae) from Brazil is described based on male specimens. This is a mainly Neotropical genus of flesh flies, with few species also present in Nearctic, Australasian and Oceanian Regions. Its species have been associated with decomposing organic matter (feces of mammals or birds – dung-breeders species) and have potential forensic importance when associated with carcasses (attracted fauna and, in some cases, true carrion-breeding species). Digital photographs of the habitus in lateral view and of the terminalia in lateral, posterior and ventral views are provided. Oxysarcodexia mineirensis sp. n. is close-related to “Xarcophaga species-group” (i.e. with a postero-distal phallic enlargement) and is similar to Oxysarcodexia favorabilis (Lopes, 1935) due to the conformation of the terminalia, especially the phallus flower-like shaped.Descrição de Uma Nova Espécie Neotropical de Oxysarcodexia Townsend, 1917 (Diptera: Sarcophagidae)Resumo. Uma nova espécie de Oxysarcodexia Townsend, 1917 (Diptera: Sarcophagidae) é descrita com base em espécimes machos. As espécies deste gênero de sarcofagídeos apresentam distribuição majoritariamente Neotropical, com algumas espécies ocorrendo também nas regiões Neártica, Australásia e Oceânica. As espécies deste gênero podem ser encontradas associadas à matéria orgânica em decomposição (fezes de mamíferos ou aves – espécies coprófilas) e podem apresentar importância forense quando associadas a carcaças (fauna atraída e, em alguns casos, espécies que se criam). Fotografias digitais do hábito em vista lateral e da terminália em vistas lateral, posterior e ventral são apresentadas. Oxysarcodexia mineirensis sp. n. pertence ao “grupo Xarcophaga” (i.e. possui o falo alargado postero-distalmente) e contém similaridades com Oxysarcodexia favorabilis (Lopes, 1935) devido à conformação da terminália, especialmente o formato do falo, semelhante a uma flor.

A new flesh fly species of Oxysarcodexia Townsend from the Brazilian Atlantic Forest and redescription of Oxysarcodexia xon (Dodge, 1968)

“…Early authors considered Oxysarcodexia species with apical phallic enlargement under the distinct genus Xarcophaga (Dodge, 1968, but current authors have dealt with these species under Oxysarcodexia, following the synonymic proposal of Lopes (1975a) and , although species with phallic enlargement have been referred as "Xarcophaga group" or "xon species-group" (Soares & Mello-Patiu, 2010;Souza & Paseto, 2015;Souza & Buenaventura, 2016;Dufek & Mulieri, 2017). However, until now there is no formal proposition between species-groups or subgenera in Oxysarcodexia.…”

“…synonymized all these four genera under Oxysarcodexia. Subsequent authors have agreed with this genus concept and other species of Oxysarcodexia referred under "xon species-group" or "Xarcophaga group" have been described (Soares & Mello-Patiu, 2010;Souza & Paseto, 2015;Souza & Buenaventura, 2016;Dufek & Mulieri, 2017). Currently, there are 13 species of Oxysarcodexia recognized by several authors as related to "xon species-group": O. berthet Dufek & Mulieri, 2017;O.…”

“…Oxysarcodexia Townsend, 1917 has 90 known species and it is one of the largest genera of Sarcophagidae, with 83 species recorded in the Neotropical region (Lopes & Tibana, 1987;Soares & Mello-Patiu, 2010;Souza & Paseto, 2015;Souza & Buenaventura, 2016;Carvalho-Filho et al, 2017;Dufek & Mulieri, 2017). The genus diversity associated with the great similarity among the species lead to a difficulty in the identification at species level (Pape & Dahlem, 2010;Soares & Mello-Patiu, 2010).…”

“…Males of some Oxysarcodexia species have a characteristic distal enlargement of the phallus and have been referred as "xon species-group" or "Xarcophaga group", considered as a distal enlargement of the juxta by Souza & Paseto (2015), but often this enlargement involves both the juxta and the apical portion of the paraphallus. Dodge (1968) proposed the monotypic genus Xarcophaga to include a new species, X. xon, described only by males.…”

New records of Sarcophagidae (Insecta: Diptera) collected in Cerrado fragments in the municipality of Campo Grande, Mato Grosso do Sul state, Brazil

“…Previous distribution (PaPe 1996;barros et al 2008;rosa et al 2011;Souza et al 2015): Neotropical: Argentina, Brazil (Distrito Federal, Maranhão, Minas Gerais, Paraná, Rio de Janeiro, São Paulo). Helicobia aurescens has already been caught in traps baited with animal tissues (decomposing bovine liver and lung), dog feces, and domestic pig and rodent carcasses (Moura 2004;Mulieri et al 2008;barros et al 2008;Mulieri et al 2010;Mello-Patiu et al 2014;souza et al 2015). In Curitiba, Paraná state, this species showed a preference for inhabited areas (Ferreira 1979).…”