Thaumasiochaeta longipalpis ( 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 : 46-48

Thaumasiochaeta longipalpis ( Stein, 1911)

Figs 197–200

Paralectotype. Female. Lectotype in SMT, designated by Pont (2001: 476). Peru .

Diagnosis. Length of body. 5.5 mm (female). Head.Female frons broad, about one-third of head-width, brown. Fronto-orbital plate, parafacial, face and gena strongly silvery pruinose from certain angles. Ocellar triangle indistinct. Ocellar setae very long.Antenna dark brown. Arista dark brown, bare. Palpus dark brown, very long, enlarged and flat. Oral margin strongly projecting forwards. Thorax. Scutum brown; with two lateral grey pruinose vittae from postscutum to margin of scutellum. Dorsocentrals 2+3. Katepisternals 1:2. Haltere brown. Calypters white. Legs. Brown. Fore tibia without median seta. Mid tibia with 2–3 anterodorsal setae, 2 posterodorsals, without anteroventral. Hind tibia with 2 anterodorsal setae, 3 anteroventrals, 1 posterodorsal on basal third. Arolium and pulvillus very short. Wing. Smoky brown. Costal spines not developed as in the congeners. Abdomen. Brown, broadly grey pollinose.

Remarks. The male can be recognized by the very long palpus and the strongly projecting oral margin. It was keyed by Couri (1999) and by Couri and Carvalho (2002). The male and female terminalia were illustrated by Couri (1999, figs 51–55).