The Muscini flies of the world (Diptera, Muscidae): identification key and generic diagnoses Author Nihei, Silvio Shigueo Author Carvalho, Claudio José Barros De text Zootaxa 2009 1976 1 24 journal article 10.5281/zenodo.185153 0b5ad8cc-9b48-4700-acc5-012d1707f720 1175-5326 185153 Subgenus Parapyrellia Townsend, 1915 Parapyrellia Townsend, 1915 : 97 (as genus). Type species: Musca violacea of authors nec Fabricius [misidentification, = Pyrellia maculipennis Macquart, 1846 ]. Diagnosis. Colouration metallic greenish-blue to violaceous-blue with silver pruinosity; wing with maculae on humeral vein, on apex of Sc and R1, on apex of R2+3 and on r-m and dm-cu crossveins. Female with proclinate fronto-orbital seta undeveloped; parafrons setulose on upper half; interfrontal seta absent. Dorsocentrals 2+4, but they can be reduced to 0+ 2 in M. oportuna ( Albuquerque & Lopes, 1979 ) . Intrapostalar absent. Prosternum bare. Katepisternals 1+2. Proepisternum 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 bent forward towards R4+5. 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 ( Fig. 17 ). Calcar strong. Distribution (3 species). Neotropical. References. Albuquerque and Lopes (1979) , de Carvalho and Couri (2002) . Subgenus Trichomorellia Stein, 1918 Trichomorellia Stein, 1918 : 204 (as genus). Type species: Trichomorellia boliviana Townsend, 1931 [= Dasymorellia trichops Malloch, 1923 ]. Diagnosis. Colouration metallic blackish-blue to dark greenish-blue with silver pruinosity; wing usually with maculae on humeral vein and on apex of Sc and R1. Eye densely setulose, particularly the males. Female with proclinate fronto-orbital seta; interfrontal seta absent; frontal vitta bare or densely setulose on upper half. Presutural acrostichals developed; 2 or 3 postsutural pairs. Dorsocentrals 2+4. Posthumeral present; postsutural intra-alars 2; intrapostalar present. Prosternum bare. Katepisternals 1+2. Wing with the basal portion of stemvein setulose ventrally; R4+5 setulose dorsally and usually also ventrally; M bent forward towards R4+5. Lower calypter glossiform. Subcostal sclerite bare. Male mid femur with a dorsal preapical protuberance bearing a set of modified (hook-like) or non-modified setulae. Calcar strong. Comments. For a long time, the name Dasymorellia Malloch was used instead of the earlier Trichomorel - lia. This confusion was clarified and the name usage corrected by Pont et al. (2005) . Distribution (8 species). Neotropical. References. Pamplona (1983, as Dasymorellia ) , de Carvalho and Couri (2002, as Dasymorellia ) , Pont et al. (2005) .