Spilogona concolor ( Stein, 1920b )

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 : 36-37

Spilogona concolor ( Stein, 1920b)

Figs 137–140

Syntypes. 2 males. U.S.A.

Diagnosis. Length of body. 4.5 mm (male). Head. Male holoptic. Fronto-orbital plate, ocellar triangle, face, parafacial and gena dark brown. Ocellar triangle dark brown, very short. Ocellar setae short. Eye without hairs. Antenna dark brown. Arista dark brown, short pubescent. Palpus dark brown. Gena at lowest eye margin about the same width as postpedicel. Oral margin not projecting forwards. Thorax. Scutum and pleura uniformly dark brown. Presutural acrostichals developed, in 2 rows. Dorsocentrals 2+4. Notopleuron without setulae. Anepisternum with 1 interspatial seta. Haltere and calypters dark brown. Legs. Dark brown. Fore tibia without a posterior seta. Mid tibia with 2 posterior setae on middle third; without anteroventral and anterodorsal. Hind tibia with a row of anterodorsal setae; 2 submedian anteroventrals; 3 posterodorsals. Arolium and pulvillus enlarged. Wing. Smoky dark brown, lighter at apex. Costal spine indistinct. Abdomen. Uniformly dark brown. Sternite 1 bare.

Remarks. The uniformly dark colour of this species easily identifies it. The species can be identified with the keys to Spilogona species by Huckett (1932) (as subgenus of Limnophora ) and by Huckett (1965).