Ringdahlia curtigena Ringdahl 1935, comb. n.

• Main Author: Michelsen, Verner
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2014
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Anthomyiidae; Ringdahlia; Ringdahlia curtigena; karelia*
• Online Access: https://doi.org/10.5281/zenodo.6126232; http://treatment.plazi.org/id/03FC87FACB39AB77FF36FAB41E9E6F76

Ringdahlia curtigena (Ringdahl, 1935), comb. n. (Figs. 27–30, 31–42, 43) Hylemyia curtigena Ringdahl, 1935: 28; Tiensuu 1936a: 21, fig. 9; Tiensuu 1936b: 164, 166. Lasiomma ? curtigena (Ringdahl); Hennig 1972: 431, text figs. 384, 385, plate figs. 679, 682, 695, 696. Lasiomma curtigena (Ringdahl); Suwa 1977: 6, figs. 6–10; Fan et al. 1988: 61, figs. 121–123; Wei et al. 1998: 662, fig. 1482; Michelsen 2004; Hua 2006: 100. Chirosiomima curtigena (Ringdahl); Hennig 1976a: 928; Hennig 1976b: lix; Suwa 1999: 216. Chirofiomima [sic!] curtigena (Ringdahl); Hua 2006: 96. Notes on the type material. Ringdahl (1935) wrote about Hylemyia curtigena : “ 2♂ aus Sortavala in Finland (leg. Mag. L. Tiensuu).” Hennig (1972) stated that his redescription of the species was based on the holotype ♂ deposited in the Helsinki Museum. This suggests that Ringdahl did not see both males, when he described the species. Hennig (1972) and Dely-Drakovits (1993) both overlooked that the type locality Sortavala is no longer in Finland, but situated in Russian Karelia. Description. Male. Medium sized, rather delicate anthomyiid (Fig. 27); wing length 3.4–4.5mm. Colour: Head, body and appendages dark brown to black, covered in grey to bluish grey dusting with a distinct dark subshine on dorsum of thorax and abdomen. Dark striping on mesonotum obsolete except for a broad median stripe before suture visible in posterior view. Middorsal dark markings on tergites II–V of abdomen expanded anteriorly as laterally tapering fore-marginal bands. Calypteres whitish in contrast to light brownish tinged wing base; halter light yellow. Head (Fig. 28) narrow and deep with antennae inserted well below middle. Fronto-parafacial angle in line with lower facial margin. Eyes large, bare. Aristal pubescence about same length as greatest basal diameter of arista. Mouthparts short; prementum with grey dusting. Frons at narrowest point much narrower than anterior ocellus and with frontal vitta suppressed by linear parafrontalia. Frontals 3–4 pairs in lower third, ...