Prosciara extumida 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 : 337

Prosciara extumida Shi & Huang , sp. nov.

( Figs. 22 , 24 )

Specimens examined. Holotype, male. China, Yunnan province, Baoshan, Longyang, Lujiang, Nankang, 1847 m, sweep-net, 24°48.376ʹN, 98°47.342ʹE, 9.V.2009, Junhao Huang [SM00854].

Description (Male). Color. The head is bleached, pale brown; antenna, abdomen and hypopygium yellowishbrown; thorax, palpus and legs yellow, the mesonotum brown; wing fumose. Head ( Fig. 22 C, D). Eye bridge with 3 rows of facets. Prefrons with 37 setae. Clypeus with 3 setae. Basal segment of palpus with 6 setae; 2nd segment with 11 setae; 3rd segment with 6 setae. Length/width of 4th flagellomere: 2.24. Thorax. Anterior pronotum with 10 setae, episternum 1 with 7 setae. Wings. Wing length 3.15 mm, width/length: 0.37. c/w: 0.18. R1/R: 1.13. r-m with 7 setae, stM bare, M1 and M2 bare, Cu1 and Cu2 bare. Legs. Foretibia with a comb of 11 setae ( Fig. 22 E). Length of spur/width of foretibia 2.33. Length of femur/length of metatarsus: foreleg 0.97. Length of metatarsus/ length of tibia: foreleg 0.77, hind leg 0.55. Length of hind tibia/length of thorax 2.06. Foretibia with 6 dorsal, 8 ventral, 7 prolateral and 8 retrolateral spinose setae. Midtibia with 8 dorsal spinose setae. Hypopygium ( Fig. 22 A, B). Sternite 10 with 1 seta on each half.

Distribution. China (Yunnan, Fig. 24 ).

Remarks. By the location and shape of the dorsal lobe, the new species resembles P. c u l t r a t a Vilkamaa & Hippa, 1996. But P. extumida has a distinctively larger intercoxal lobe on the hypopygium than in P. cultrata and the other species. Although the intercoxal lobe of the holotype was partly broken, the size of the lobe could be examined clearly.

Etymology. This species is named after its large intercoxal lobe on the hypopygium, from the Latin adjective extumidus, meaning swollen.

Figures

FIGURE 22. Prosciara extumida Shi & Huang, sp. nov., male, holotype. A, left gonostylus, ventral view; B, part of hypopygium, ventral view; C, palpus, lateral view; D, 4 th flagellomere, lateral view; E, apex of foretibia, prolateral view. Scale 0.10 mm.

FIGURE 24. Geographical distribution of Prosciara from China.