Villeneuvia aestuum ( Villeneuve, 1902 )

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 : 48-53

Villeneuvia aestuum ( Villeneuve, 1902)

Figs 213–216

Paralectotypes. 3 males, 1 female. Lectotype in NMBA, designated by Morge (1984: 329). Belgium .

Diagnosis. Length of body. 5.5–7.0 mm (male, female). Head. Male frons broad, dark brown.Fronto-orbital plate, ocellar triangle, face, parafacial and gena silver pruinose. Ocellar triangle grey pollinose, reaching halfway to lunule. Ocellar setae short. Antenna short, dark brown. Arista very short, enlarged on basal third, dark brown, bare. Lunule yellow. Palpus dark brown. Gena at lowest eye margin about 3 times the width of postpedicel. Oral margin very narrow and genae only narrowly separated in frontal view; vibrissae crossed (Hennig 1959, text-fig. 66a, b). Thorax. Scutum grey pollinose with 3 brown vittae, the 2 lateral ones broad. Prosternum bare. Dorsocentrals 2+4. Haltere yellow. Calypters white. Legs. Brown. Fore tibia with 1 median posterior seta. Mid tibia with 2–3 posterior setae on middle third. Hind tibia with 2 anterodorsal setae; 2–3 anteroventrals and 1 posterodorsal. Arolium and pulvillus not enlarged. Wing. Costal spine indistinct. Veins bare. Abdomen. Sternite 1 bare.

Remarks. This species can be recognized by the narrowly-separated genae and crossed vibrissae; and the short and bare arista, enlarged at base. The genus is monobasic. The male and female terminalia were illustrated by Hennig (1959, text-fig. 67, plate 10 fig. 193, plate 14 fig. 282).