Limnophora exigua ( Wiedemann, 1830 )

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 : 8

Limnophora exigua ( Wiedemann, 1830)

Figs 41–44

Syntypes. 2 males, 2 females of Limnophora plumiseta Stein in Becker, 1903, junior synonym of L. exigua . Egypt .

Diagnosis. Length of body. 2.5–3.5 mm (male, female). Head. Male dichoptic. Frons brown.Ocellar triangle shiny brown, reaching lunule. Fronto-orbital plate brown on upper half and grey pollinose on lower half. Parafacial and gena grey pruinose. Antenna and arista dark brown; postpedicel with tip pointed. Palpus dark brown. Thorax. Scutum with 2 presutural dark brown spots fused anteriorly and separated posteriorly, a postsutural dark brown transverse band reaching posterior pair of dorsocentral setae; scutellum dark brown. Dorsocentrals 2+4. Intraalars 1+2. Lower katepisternal long, closer to the posterior seta. Haltere yellow. Calypters white. Legs. Fore tibia without a posterior seta. Mid femur with 2 preapical setae. Mid tibia with 2 median posterior setae. Hind tibia with 1 short and fine median anterodorsal and anteroventral setae; without posterodorsal.Arolium and pulvillus small. Wing. Costal spine indistinct. Abdomen. Sternite 1 bare.

Remarks. This can be identified with the keys by Emden (1951) and Hennig (1959) (both as Limnophora plumiseta ) and by Couri et al. (2006). Sternite 5 and male terminalia illustrated by Couri and Pont (2017, figs 21–23). See also Couri and Pont (2017) for diagnosis and notes.