Streblidae (Diptera, Hippoboscoidea) em morcegos (Chiroptera, Phyllostomidae) no nordeste do Rio Grande do Sul, Brasil

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Abstract
A survey of the Streblidae batflies on the phyllostomid bats was conducted in the northeastern Rio Grande do Sul State, Brazil, during 1997. Hundred thirty three streblids were collected on 44 parasited hosts. Eleven species of batflies (Trichobius dugesii Townsend, 1891, T. tiptoni Wenzel, 1976, Trichobius sp., Paratrichobius longicrus (Miranda Ribeiro, 1907), Megistopoda aranea (Coquillett, 1899), M. proxima (Séguy, 1926), Exastinion clovisi (Pessoa & Guimarães, 1936), Paraeuctenodes longipes Pessoa & Guimarães, 1936, Anastrebla modestini Wenzel, 1966, A. caudiferae Wenzel, 1976 and Metelasmus pseudopterus Coquillett, 1907) were found on six species of phyllostomid bats (Artibeus lituratus (Olfers, 1818), A. fimbriatus Gray, 1838, Sturnira lilium (E. Geoffroy, 1810), Glossophaga soricina (Pallas, 1766), Anoura caudifera (E. Geoffroy, 1818) and A. geoffroyi Gray, 1838). All records are new for the Rio Grande do Sul and Anastrebla caudiferae is firstly recorded in Brazil. Differences in the batflies community composition in Artibeus fimbriatus and A. lituratus are discussed