Spilogona quinquesetosa

Spilogona quinquesetosa (Schnabl, 1915) Fig. 4D Limnophora (Spilogona) quinquesetosa Schnabl in Becker et al., 1915: 33. Type-locality: Russia, Yugorskiy peninsula, Kara district [seen]. Spilogona barrowensis Huckett, 1965: 212. Type locality: “ Point Barrow, Alaska, 7.20.52 [i.e. 20.vii.1952]” [USA, Alaska; collector P.D. Hurd] [seen]. Syn. nov. Spilogona quinquesetosa (Schnabl, 1915); Sorokina & Thidrikh, 2021: 226 (Chukotka AO, including Wrangel Island). Notes. The type material of Limnophora quinquesetosa Schnabl (in ZISP) and Spilogona barrowensis Huckett (in Canadian National Collection) was examined. The descriptions of both species and the male terminalia are the same. This is black species with brown dust, without marks on scutum and abdomen, a shining prementum, with preapical setulae on upper border of declivities of scutellum, facial edge not projecting beyond level of profrons, strong av, v, pv setae on mid tibia, and hind femur without pv setae. According to Huckett’s description (1965), the posthumeral and notopleural regions are pale in Spilogona barrowensis, but in the holotype and the paratypes of this species these regions are brown dusted as in Limnophora quinquesetosa. I therefore conclude that Spilogona barrowensis Huckett, 1965 is a new junior synonym of Limnophora (Spilogona) quinquesetosa Schnabl, 1915. Additional material examined. RUSSIA, Yamalo-Nenets AO: 3♀, Gydanskiy Proliv, Shokalsky Island, 72°58’N 72°27’E, swamp by a stream (1♀), arctic fox hole (1♀), tundra (1♀), 4–25.viii.2016, leg. A. Nikhaeva & M. Bizin (BUIC-DIP2175, BUIC-DIP2176) (all SZMN). DNA barcode. BOLD BIN: BOLD:AEK7965. See Table 1 for GenBank accession numbers. Distribution. PALAEARCTIC: Russia (Arctic Siberia). NEARCTIC: Alaska (Point Barrow).