Neomyia Walker, 1859

Nihei, Silvio Shigueo & Carvalho, Claudio José Barros De, 2009, The Muscini flies of the world (Diptera, Muscidae): identification key and generic diagnoses, Zootaxa 1976, pp. 1-24 : 17

Neomyia Walker, 1859

Neomyia Walker, 1859: 138 (as subgenus of Musca ). Type species: Musca gavisa Walker, 1859 .

Diagnosis. Colouration metallic blue, purple to green, wing without maculae (except for some Afrotropical species). Male with anterointernal ommatidia normally developed (except for some Afrotropical species, with strongly enlarged ommatidia). Female with proclinate fronto-orbital developed or not; parafrons setulose along its entire length; interfrontal seta absent. Dorsocentrals 0-2+2-4. Posthumeral developed or not; intrapostalar usually present. Prosternum setulose. Katepisternals 1+2 or 1+3 (rarely 0+1). Greater ampulla setulose ( Fig. 10 ). Anatergite usually setulose below lower calypter. Anterior suprasquamal ridge setulose or not; posterior suprasquamal ridge always setulose ( Fig. 14 ). Wing with the basal portion of stem-vein with a curved posterior setulae at the basal third of dorsal surface; apical portion of stem-vein setulose ventrally; Rs node and R4+5 setulose dorsally and ventrally; M bent forward towards R4+5. Lower calypter enlarged posteriorly, extending under base of scutellum ( Figs. 10 , 14 ). Subcostal sclerite setulose ventrally. Accessory sclerite (at the base of upper calypter) setulose ( Fig. 10 ). Mid tibia with a strong submedian seta on ventral to posteroventral surface. Hind coxa usually setulose on posterior surface. Calcar absent, weak or strong.

Distribution (75 species). Afrotropical, Australasian, Nearctic, Neotropical, Oriental, Palaearctic.

References. Afrotropical species: Snyder (1951), Peris (1967), Zielke (1971), Couri et al. (2006); Australasian: Pont (1973); Nearctic: Huckett (1965); Neotropical: de Carvalho and Couri (2002); Oriental: Emden (1965), Xue and Chao (1998), Shinonaga and Thinh (1999); Palaearctic: Hennig (1963b), Zimin and Elberg (1988), Pont (1991), Xue and Chao (1998), Gregor et al. (2002), Shinonaga (2003).

Figures

FIGURES 9 – 11. 9. Schematic presentation of Muscidae thorax, dorsal view. 10. Thorax (partial), Neomyia cornicina (Fabricius), lateral view. 11. Wing, Morellia podagrica (Loew). Figures 9 – 11 after Nihei and de Carvalho (2007 a).

FIGURES 12 – 14. Posterolateral portion of thorax and lower calypter: 12. Polietina flavithorax (Stein), dorsolateral view. 13. Myiophaea spissa (Walker), dorsolateral view. 14. Neomyia cornicina, oblique dorsolateral view. All figures on same scale.