Updated species list of the bat ectoparasitic flies (Diptera: Nycteribiidae and Streblidae) in the state of Paraíba, Northeastern Brazil

Bat ectoparasitic flies are highly specialized hematophagous insects exclusive to Chiroptera. Between November 2014 and August 2016, we surveyed these ectoparasites in urban and protected areas in the state of Paraiba, northeastern Brazil. We recorded 15 fly species in 10 genera in the families Streblidae (13) and Nycteribiidae (2). Twelve species and 5 genera represent first records for the state. Basilia anceps and Noctiliostrebla sp., are new records for the northeastern region of Brazil. Fly specimens were collected on 8 species of bats, mainly phyllostomids, and ~87% were monoxenous. Our survey increased the number of known bat ectoparasitic flies in the state from 10 to 22 species, from 5 to 10 genera, and from 31 to 34 known species in the northeastern portion of the Atlantic Forest.