Diagnosis. Fore wing length about 3.5 mm. Antenna of both sexes with 15–16 flagellomeres. Mesoscutum with strongly coriaceous bands starting at notauli and extending back to scutellum, smooth and punctate in-between and laterally. Mesopleuron strongly coriaceous over most of its surface. Propodeum with a full set of strong carinae enclosing basal, lateral and petiolar areas, the areas with rugose sculpture. Tergite 2 about 0.8 times as long as wide in females. Metasoma in females dorsoventrally depressed, tapered towards apex.
Colouration of females. Antenna black or dark brown. Head and mesosoma black, face usually without yellow along inner orbits, dark brown on clypeus and mouthparts, yellow on tegula, usually without a shoulder mark; scutellum black. Legs mainly dark brown, coxae and trochanters black; femora extensively dark basally and dorsally, hind and usually also mid femur all dark; hind tibia and tarsus yellow to light brown, tibia with dark apex and a quite well-defined subbasal mark. Metasoma black.
Colouration of males. As in female.
Material examined. New for Europe / Sweden: Norrbotten, Kiruna kommun, Abisko NP, Bare mountain above tree limit, 900m. a.s.l., N 68 ° 21.648 ', E 18 ° 43.245 ', leg. SMTP, 26.VI.– 15.VII. 2006. 1♀, at NRM.
Additional material examined: Canada, Manitoba, Churchill, on tundra, leg. J.E. & R.B. Benson, 7.VII.1956, 1♂, at BMNH.
Notes. This species was described from the Arctic zone in the Northwest Territories and Greenland (Dasch 1964 a) and only a single female has up to now been found in northern Sweden. The description is thus based partly on Dasch’s original description.