Drepanocnemis Stein, 1911

Gomes, Lucas Roberto Pereira, Couri, Márcia Souto & Carvalho, Claudio José Barros de, 2018, A new species of Drepanocnemis (Diptera, Muscidae) from Andes in Peru, with an updated phylogenetic analysis of species, Revista Brasileira de Entomologia 62 (1), pp. 51-56 : 52

Drepanocnemis Stein, 1911

Type-species, dorae Stein ( Malloch, 1928) .

Diagnosis: Dichoptic. Distance between eyes widening to vertex. Eye large, gena is narrower than flagellum. Upper frontal pair of setae directed out and backwards. Antenna inserted at level of middle of eyes. Arista long, very finely pubescent. Labella reduced, prestomal teeth developed. Lower proepimeral seta directed upwards. Dorsocentrals 1 + 3; intralars 2; prealar absent; katepisternum with many ground setae; 0 + 1 in males and 1 + 1 + 1 in females. Prosternum, propleuron, anepimeron and meron bare. Lower calypter about twice as large as upper one. Fore tibia with a long anterodorsal seta close to base. Male fore tibia very broad with long submedian seta on anterodorsal surface and long sub-basal seta on posterodorsal surface. Mid tibia with one median posterior seta. Wing veins bare. Veins R 4+5 and M parallel at apex. Anal vein short. Sternite 1 bare. Male with hypandrium tubular, and female with long ovipositor covered with microtrichia; tergites and sternites slender.

Distribution: Bolivia (Sorata, Mapiri), Colombia (Pasto), Ecuador (Pichincha Province) and Peru (Chanchamayo, Cusco, Huariaca, Madre de Dios, Tarma).

Key to the males of Drepanocnemis Stein species (modified from Couri and de Carvalho, 2008)

1. Eyes densely covered by short cilia; fore tibia with long median anterodorsal seta.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ......... ... ... ... ... ... ... .... 2

–. Eyes bare; fore tibia with long sub-basal anterodorsal seta.. ... ... ... ... .... 3

2. Frons brown; calypter yellowish-white; wing not infuscated; anepisternum covered by long and numerous cilia [ Peru, Bolivia].. ... .... D. hirticeps Stein

–. Frons with golden copper pollinosity; calypter dark brown; wing infuscated; anepisternum covered by short and not numerous cilia [ Peru].. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... D. aurifrons sp. nov.

3. Frons brown; two dorsal abdominal spots [ Peru].. ... ... ... .... D. dorae Stein

–. Frons densely grey-green dusted; one dorsal abdominal spot [ Peru, Ecuador].. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .......... D. griseovirens Malloch