Genus MORELLIA Robineau-Desvoidy, 1830

MORELLIA Robineau-Desvoidy, 1830: 405 . Type species: Morellia agilis Robineau-Desvoidy, 1830 [= Musca hortorum Fallén, 1817], by designation of Townsend (1916: 8).

CAMILLA Robineau-Desvoidy, 1863: 641 . [Junior homonym of Camilla Haliday, 1836: Diptera .] Type species: Morellia aenescens Robineau-Desvoidy, 1830, by designation of Coquillett (1910: 517).

CYRTONEUROPSIS Townsend, 1931a: 68 . [Junior homonym of Cyrtoneuropsis Malloch, 1925: Diptera, Muscidae .] Type species: Curtonevra cyanea Macquart, 1843, by original designation [misidentification; = Pyrellia violacea Robineau- Desvoidy, 1830] (see Pont et al. 2005: 65).

CYACYRTONEURA Townsend, 1931b: 479 . Type species: Cyacyrtoneura cyanea Townsend, 1931b [= Pyrellia violacea Robineau-Desvoidy, 1830], by monotypy (see Pont et al. 2005: 65).

CHAETOPYRELLIA Townsend, 1932: 106. Type species: Pyrellia ochrifacies Rondani, 1850 [= Pyrellia violacea Robineau- Desvoidy, 1830], by original designation.

NEOPYRELLIA Enderlein, 1935: 236 . Type species: Pyrellia violacea Robineau-Desvoidy, 1830, by original designation.

NUMORELLIA Fan, 2008: 742 (Chinese, in key), 1045 (English, in key), and 994 [as a subgenus of Morellia Robineau-Desvoidy, 1830]. Type species: Cyrtoneura nilotica Loew, 1856, by original designation.

Diagnosis (modified from Pamplona [1986b, 1986c] and Nihei & Carvalho [2009]). Colour metallic bluish-black to violaceous; wing with or without maculae. Male holoptic; antero-internal ommatidia enlarged. Female with proclinate fronto-orbital setae present or not; interfrontal seta absent. Eye bare or with very few cilia; palpus a little spatulate apically; arista plumose on basal two-thirds or three-quarters and bare apically. Acrostichals 0+1; dorsocentrals 0+2, 0+3 or 1+2; intra-alars 1+1 or 1+2; supra-alars 0+3 or 1+3; intrapostalar seta present or absent; katepisternals 1+2; prosternum setulose or bare; anepimeron setulose; meron bare; metepimeron setulose above hind coxa. Wing with Rs node setulose dorsally and ventrally; R4+5 usually setulose dorsally (bare in Xenomorellia); M strongly curved forward apically; subcostal sclerite bare (setulose ventrally in Xenomorellia). Lower calypter enlarged posteriorly (extending under base of scutellum) (in Morellia s. s. and Parapyrellia) or glossiform (in Trichomorellia and Xenomorellia). Calcar varying, absent, weak or strong. Sternite 1 setulose; ovipositor long with tergites very thin and possessing strong spines.