Morellia, Robineau-Desvoidy, 1830

Pamplona, Denise, Nihei, Silvio S., Couri, Márcia S. & Pont, Adrian C., 2016, Taxonomy of Morellia Robineau-Desvoidy (Diptera: Muscidae): revision of the subgenera Morellia s. str. and Parapyrellia Townsend, Zootaxa 4163 (1), pp. 1-110 : 13

Subgenus MORELLIA Robineau-Desvoidy, 1830

Diagnosis (modified from Nihei & Carvalho [2009]). Colour metallic bluish-black to violaceous; wing with or without maculae (maculate in several Neotropical species). Female with proclinate fronto-orbital setae usually developed; fronto-orbital plate setulose at least on upper half; interfrontal seta absent. Postsutural intra-alars 1; intrapostalar seta present. Prosternum setulose or bare. Katepisternals 1+2. Wing with the basal portion of stemvein setulose or bare dorsally and ventrally; apical portion of stem-vein setulose or bare dorsally; R4+5 setulose dorsally and ventrally (in some species bare ventrally); M curved forward towards R4+5 apically. Lower calypter enlarged posteriorly, extending under base of scutellum. Subcostal sclerite bare. Male mid femur of some species with a dorsal preapical protuberance bearing a dense set of setulae. Calcar strong, weak or absent (some Neotropical species).