Spilogona torreyae ( Johannsen, 1916 )

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 : 42

Spilogona torreyae ( Johannsen, 1916)

Syntype. 1 male of Limnophora umbrina Stein, 1920b , junior synonym of S. torreyae . U.S.A.

Diagnosis. Length of body. 5.0 mm (male). Head. Male holoptic, orbits touching in middle of frons. Eyes enlarged, the upper ommatidia broader than the lower ones. Frons, fronto-orbital plate, ocellar triangle, face, parafacial and gena brown. Frontal setae absent. Ocellar triangle short. Ocellar setae absent. Eye with very sparse 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 brown. Presutural acrostichals in 2 irregular rows. Dorsocentrals 2+4. Notopleuron without setulae. Anepisternum without interspatial seta. Haltere yellow. Calypters yellowish. Legs. Brown. Fore tibia with 1 posterior seta. Mid tibia with 2 posterior setae on middle third; without anterodorsal and anteroventral. Hind tibia with 1 anterodorsal seta; without anteroventral and posterodorsal. Arolium and pulvillus not enlarged. Wing. Smoky brown. Costal spine indistinct. Abdomen. Sternite 1 bare.

Remarks. The species can be recognized by the broad eyes, with the the upper ommatidia larger than the lower ones and by the absence of frontal and ocellar setae. It can be identified with the key to Spilogona by Huckett (1932, as subgenus of Limnophora ).