Thaumasiochaeta incaica ( Stein, 1911 )

Couri, Márcia & Pont, Adrian, 2020, Type specimens of Limnophorini (Diptera: Muscidae) deposited in the Museum für Naturkunde, Humboldt-Universität zu Berlin (Berlin, Germany), Zoologia (e 46879) 37, pp. 1-57 : 46

Thaumasiochaeta incaica ( Stein, 1911)

Figs 193–196

Paralectotypes. 1 male, 1 female. Lectotype in SMT, designated by Pont (2001: 474). Bolivia .

Diagnosis. Length of body. 4.2 mm (male), 4.5 mm (female). Head. Male frons about one-third of head-width, brown. Fronto-orbital plate, parafacial, face and gena strongly golden pruinose. Ocellar triangle reaching halfway to lunule. Ocellar setae very long. Antenna dark brown. Arista dark brown, bare. Palpus dark brown, long, enlarged and flat. Oral margin only slightly projecting forwards. Thorax. Scutum dark brown. Dorsocentrals 2+3. Katepisternals 1:1. Haltere brown. Calypters white. Legs. Brown. Fore tibia with 1 long dorsal seta in apical third, its apex flat and triangular in shape. Mid tibia with 3–4 anterodorsal and posterodorsal setae on middle third and 2 submedian anteroventrals. Hind femur bowed on basal third. Hind tibia with 5 anterodorsal setae; without anteroventral and posterodorsal. Arolium and pulvillus short. Wing. With smoky brown spots on disc and at tip between costal-R 2+3 and R 4+5 -M. Costa with spines, stronger close to the tip of subcosta. Abdomen. Brown, broadly grey pollinose.

Remarks. The male can be recognized by the chaetotaxy of the legs and the spots on the wing. It was keyed by Couri (1999) and by Couri and Carvalho (2002). The wing was illustrated by Couri (1999, fig. 28).