Subgenus PARAPYRELLIA Townsend, 1915

PARAPYRELLIA Townsend, 1915: 97 [as a full genus]. Type species: Musca violacea of authors, not Fabricius [misidentification] [= Pyrellia maculipennis Macquart, 1846a], by original designation.

Diagnosis (modified from Nihei & Carvalho 2009). Colouration metallic greenish-blue to violaceous-blue with silver pruinosity; wing with maculae on humeral vein, on apices of Sc and R1, on apex of R2+3 and on r-m and dmcu crossveins. Female with proclinate fronto-orbital setae weak (undistinguishable); fronto-orbital plate setulose on upper half; interfrontal seta absent. Dorsocentrals 2+4, but sometimes reduced to 0+ 2 in M. oportuna . Intrapostalar seta absent. Prosternum bare. Katepisternals 1+2. Proepisternal depression setulose (bare in M. humeralis). Meron bare. Wing with the basal portion of stem-vein setulose ventrally; apical portion of stem-vein setulose dorsally; R4+5 setulose dorsally and ventrally; M curved forward towards R4+ 5 in apical part. Lower calypter enlarged posteriorly, extending under base of scutellum. Subcostal sclerite bare. Male mid femur with a dorsal preapical protuberance bearing a set of modified (hook-like) setulae. Hind tibia with the calcar strong.

Distribution. Neotropical (7 species).