Biopyrellia Townsend, 1932

Biopyrellia Townsend, 1932: 105 . Type species: Musca bipuncta Wiedemann, 1830 .

Diagnosis. Colouration metallic dark-blue; thorax surface with fine pilose punctuation; wing with maculae on humeral vein and on apex of Sc and R1. Male with anterointernal ommatidia strongly enlarged, with same size as anterior ocellum. Vibrissa reduced and inserted above the level of oral margin. Female without proclinate fronto-orbital seta; parafrons weakly setulose on upper half; interfrontal seta absent. Dorsocentrals 0+1. Posthumeral, parahumeral, postsutural intra-alars and intrapostalar seta absent. Prosternum notably narrowed anteriorly and bare (Fig. 6). Katepisternals 0+1. Meron and katepimeron bare. Posterior spiracle bare on posterior margin. Wing with the apical portion of stem-vein setulose ventrally; Rs node setulose dorsally and ventrally; R4+5 bare dorsally and ventrally; M bent forward towards R4+5; some portions of the membrane not covered by microtrichiae. Subcostal sclerite bare. Lower calypter enlarged posteriorly, extending under base of scutellum. Mid tibia with two weak posteroventral setae, one supramedian and another at apical third (Fig. 16). Calcar weak.

Distribution (1 species). Neotropical.

References. Pamplona (1986), de Carvalho and Couri (2002).