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Holotype, male. CHINA. Shanxi Province, Qinshui, Xiachuancun, Putonggou, sweep-net, 24.VII.2012, Kai Shi [SM01737]. Paratype, SHANXI. 1 male, the same data as holotype [SM01736].
Head dark brown; antenna, thorax, and abdomen brown; palp and hypopygium pale brown; legs yellowish-brown; wings fumose. Head (Fig. 4C, D). Eye bridge with 3 rows of facets. Prefrons with 7–8 setae. Clypeus non-setose. Maxillary palp 3-segmented, segment 1 with 2 setae. Length/width of fourth flagellomere: 3.86–4.07. Thorax. Anterior pronotum with 2 setae, episternum 1 with 3 setae. Wings (Fig. 8D). Wing length 1.80 mm, width/length: 0.39. c/w: 0.81. R1/R: 0.43. M, Cu, stM, and r-m non-setose. Legs (Fig. 4E). Front tibia with an indistinct row of seven spinose setae. Length of spur/width of foretibia 1.27–1.39. Length of femur/length of metatarsus: foreleg 1.34–1.43. Length of metatarsus/length of tibia: foreleg 0.46–0.50, hind leg 0.46–0.47. Length of hind tibia/length of thorax 1.40–1.35. Hypopygium (Fig. 4A, B). Sternite 10 with one seta on each half.
China, Shanxi (Fig. 9).
This species is unique within the genus in having its tegmen greatly projected in the middle of the apical margin. Based on the form of the gonostylus, it is similar to Peyerimhoffia menzeli Vilkamaa & Hippa, 2005, but differs in having a very slender fourth flagellomere that is about four times longer than its width and a tegmen that is strongly projected apically. In contrast, in Peyerimhoffia menzeli, the fourth flagellomere is about twice longer than its width and the tegmen is truncate apically.
This species is named after the great middle projection of the apical tegmen (Latin adjective longiprojecta = long projection).
- Shi, K; Huang, J; Zhang, S; Wu, H; 2014: Taxonomy of the genus Peyerimhoffia Kieffer from Mainland China, with a description of seven new species (Diptera, Sciaridae) ZooKeys, 382: 67-83. doi