Syrphophilus asperatus Dasch 1964

Syrphophilus asperatus Dasch 1964a

Colouration of females. Antenna black. Head and mesosoma black, face with yellow inner orbits, yellow on clypeus, mouthparts, hind corner of pronotum, tegula, sometimes subtegular ridge, at least a small shoulder mark, and upper mesepimeron; scutellum orange, often with apex yellow. Mesopleuron, mesosternum and often metapleuron dark orange. Legs including all coxae orange; femora orange; hind tibia orange to whitish basally, remainder and hind tarsus dark. Metasoma black, often with some dark orange colour on hind margins of tergites 2 to 5.

Colouration of males. As in females but with yellow ventrally on scape and sometimes antenna, large central face patch or entire face, lower propleuron, epicnemium, sometimes a stripe on lower mesopleuron, and sometimes part of mesosternum; scutellum with an apical spot or largely yellow. Fore coxa entirely yellow, mid coxa orange with a yellow apex, hind coxa orange. Metasoma black but sometimes with yellow spots apically on third segment.

Material examined. New for Finland: EnL Enontekiö, Jokasjärvi 7686:280, leg. Jussila, 11.–15.VII.2007. 2♂, 1♀, at ZMUC.

Additional material. Sweden: Norrbotten, Kiruna kommun, Abisko, leg. J.E. & R.B. Benson, 13.VII.1954. 1♀; Stockkholms län, Dalarö Malmen, leg. J.Q.&T.H., 15.–26.VIII.1976. 1♀, both at BMNH. Värmland, Munkfors kommun, Ransäter, Ransbergs herrgard. Old mixed deciduous ofrest in stream ravine, N59°47'25.59", E13°24'54.61", leg. SMTP, 10.VII.–24.VII.2005. 1♂, and 18.VI.–27.VI.2005. 1♀; Västerbotten, Sorsele kommun, Ammarnäs, Vindelfjällens naturreservat, Tjulträsklaspen, Alpine birch wood., N65°58.007', E16°03.630', leg. SMTP, 27.VI.–17.VII.2005. 2♀; Norrbotten, Kiruna kommun, Abisko NP, Bare mountain above tree limit, 900m. a.s.l., N68°21.648', E18°43.245', leg. SMTP, 26.VI.–15.VII.2006. 5♀; Norrbotten, Pajala kommun, Vasikkavuoma, mowable bog, N67°13.778', E23°11.200', leg. SMTP, 25.VI.–30.VI.2004. 1♀; Abisko, leg. Krogerus, 6.VII.1939. 1♀; Torne Tr., leg. Malaise, 7.VII.1917. 1♀; all at NRM; Kiruna, 22.VII.1964, 1♀, at ZSM.

Distribution. Holarctic.

Figures. Habitus (Fig. 35 A), male terminal sclerites (Fig. 38 D).