Classification of Phaonia Robineau-Desvoidy (Diptera, Muscidae) from the neotropical region: I. Considerations about the synonym of Bigotomyia Malloch with description of a new species.

Mesonotum brown with grey pollinosity and with 5 fine and well marked brown vittae at acrostichal, dorsocentral and intra-alar surfaces (Fig. Pleurae brown with grey pollinosity.

Head subtriangular in frontal view (Fig. Eyes emarginated on face around antennae and on postgenal mar- gin; with dense short interfacetal setulae and no differentia- tion of

Hind tibia with one median seta on anterodorsal surface; frequently with 2–3 median setae on anteroventral surfaces; one median (calcar) seta on posterodorsal

Diphuia can be distinguished from other gen- era of Hecamedini as follows (characters indicated by an aster- isk (*) are apomorphies that corroborate the monophyly of Diphuia )

2 Scutum densely grey dusted, pleura yellow with grey dusted spot on ane- pimeron, pedicel and palpi yellow, apical tarsomeres of all legs blackish (less distinct in ♀ ), male

Perna média com fêmLIr na face ventral com uma série de cerdas finas e espaçadas, faces ântero-dorsal, dorsal e póstero-dorsal com uma cerda pré -a picaI; tíbia na

ABSTRACT. Os exemplares estudados foram coletados pelo Prof. Segundo cauerno ue campo do coletor. Como o material estudauo não corresponde à uescrição de nenhuma

Comprimento 3,5mm; cabeça (Fig. 1): antenas desprovidas de chifre; um par de cerdas apicais dorsais com O,06mm; face com um par superior de espinhos cefálicos triangulares,