Prosciara sinensis Shi & Huang

Shi, Kai, Huang, Junhao, Komarova, Lyudmila, Zhang, Sujiong & Wu, Hong, 2013, Review of the genus Prosciara Frey (Diptera, Sciaridae) from China, Zootaxa 3640 (3), pp. 301-342 : 334

Prosciara sinensis Shi & Huang , sp. nov.

( Figs. 19 , 23 A, 24)

Specimens examined. Holotype, male. China, Zhejiang province, Qingyuan, Mt. Baishanzu, 27°45.866ʹN, 199°10.593ʹE, 1476–1800 m, sweep-net, 14.X.2011, Kai Shi [SM01104]. Paratypes. 2 males, the same data as holotype [SM01101,SM01105]; 1 male, Zhejiang province, Qingyuan, Baishanzu, Chameiwei, 1300 m, 24.IX.1993, Hong Wu [SM01153].

Description (Male). Color. Head dark brown; antenna, palpus, hypopygium brown; thorax and abdomen yellowish-brown, the mesonotum dark brown; and legs yellow; wing fumose. Head ( Fig. 19 C, D). Eye bridge with 3–4 rows of facets. Prefrons with 17 setae. Basal segment of palpus with 4–7 setae; 2nd segment with 20–21 setae; 3rd segment with 14–18 setae. Length/width of 4th flagellomere: 1.38–1.72. Thorax. Anterior pronotum with 6–9 setae, episternum 1 with 8–16 setae. Wings ( Fig. 23 A). Wing length 3.15–3.64 mm, width/length: 0.35–0.40. c/w: 0.47–0.49. R1/R: 0.99–1.05. r-m with 2–8 setae, stM bare, M1 and M2 bare, Cu1 and Cu2 bare. Legs. Foretibia with a comb of 7–9 setae ( Fig. 19 E). Length of spur/width of foretibia 1.30–1.55. Length of femur/length of metatarsus: foreleg 0.87–0.92. Length of metatarsus/length of tibia: foreleg 0.77–0.82, hind leg 0.49–0.72. Length of hind tibia/length of thorax 1.27–2.10. Foretibia with 0 dorsal, 2–4 ventral, 2 prolateral and 5–7 retrolateral spinose setae. Midtibia without dorsal spinose setae. Hypopygium ( Fig. 19 A, B). Sternite 10 with 1–2 setae on each half.

Distribution. China (Zhejiang, Fig. 24 ).

Remarks. By its bare M and Cu wing veins, four short megasetae on a long dorsal lobe on the gonostylus, a tegmen with lateral membraneous prominence and a wide intercoxal lobe on the hypopygium, the new species resembles P. tetracantha sp. nov ( Fig. 20 A, B). The lateral membraneous prominence on tegmen is an unique character that we discovered in Prosciara for the first time in the two species. However, they may be distinguished by a dorsal lobe extended internally and apically in P. s i n e n s i s, while extended straightly and laterally in P. tetracantha . Furthermore, P. tetracantha resembles P. quadridigitata ( Fig. 14 B) by sharing the very similar form of the gonostylus and the dorsal lobe, and also the arrangement of the megasetae. But, P. quadridigitata may easily be recognized by its absence of both the membraneous prominence on tegmen and the intercoxal lobe on the hypopygium.

Etymology. This species is named after the country of origin, from the Latin adjective sinensis , meaning Chinese.

Figures

FIGURE 14. Prosciara quadridigitata (Yang, Zhang & Yang, 1995), male, A and B paratype, C and D holotype. A, part of hypopygium, ventral view; B, right gonostylus, ventral view; C, palpus, lateral view; D, 4 th flagellomere, lateral view. Scale 0.10 mm.

FIGURE 19. Prosciara sinensis Shi & Huang, sp. nov., male, holotype. A, left gonostylus, ventral view; B, part of hypopygium, ventral view; B- 1, lateral membraneous prominence; C, palpus, lateral view; D, 4 th flagellomere, lateral view; E, apex of foretibia, prolateral view. Scale 0.10 mm.

FIGURE 20. Prosciara tetracantha Shi & Huang, sp. nov., male, holotype. A, part of hypopygium, ventral view; B, right gonostylus, ventral view; C, palpus, lateral view; D, 4 th flagellomere, lateral view; E, apex of foretibia, prolateral view. Scale 0.10 mm.

FIGURE 23. Wings, dorsal view. A, Prosciara sinensis sp. nov. (holotype); B, P. triloba Hippa & Vilkamaa, 1991; C, P. paucispina sp. nov. (holotype); D, P. m y r i a c a n t h a sp. nov. (holotype); E, P. producta (Tuomikoski, 1960); F, P. pollex Hippa & Vilkamaa, 1991. Scale 0.50 mm.

FIGURE 24. Geographical distribution of Prosciara from China.