Prosciara ellipsoidea 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 : 312

Prosciara ellipsoidea Shi & Huang , sp. nov.

( Figs. 6 , 24 )

Specimens examined. Holotype, male. China, Sichuan province, Labahe, 1200 m, sweep-net, 16.VII.2006, Xiao- Ling Niu, [SM01146].

Description (Male). Color. The head is bleached, pale brown; thorax, abdomen and hypopygium yellowishbrown; antenna, palpus and legs yellow; wing fumose. Head ( Fig. 6 C, D). Eye bridge with 3 rows of facets. Prefrons with 41 setae. Clypeus with 1 seta. Basal segment of palpus with 2 setae; 2nd segment with 4 setae; 3rd segment with 5 setae. Length/width of 4th flagellomere: 2.73. Thorax. Anterior pronotum with 5 setae, episternum 1 with 12 setae. Wings. Wing length 2.99 mm, width/length: 0.35. c/w: 0.63. R1/R: 0.89. r-m with 3 setae, stM bare, M1 and M2 with numerous setae, Cu1 with numerous setae and Cu2 bare. Legs. Foretibia with a comb of 9 setae ( Fig. 6 E). Length of spur/width of foretibia 1.73. Length of femur/length of metatarsus: foreleg 0.82. Length of metatarsus/length of tibia: foreleg 0.80, hind leg 0.55. Length of hind tibia/length of thorax 1.70. Foretibia with 0 dorsal, 0 ventral, 2 prolateral and 2 retrolateral spinose setae. Midtibia without dorsal spinose setae. Hypopygium ( Fig. 6 A, B). Sternite 10 with 1 seta on each half.

Distribution. China (Sichuan, Fig. 24 ).

Remarks. By its wing length, setose M and Cu1, and the shape of the intercoxal lobe on the hypopygium, the new species resembles P. latilingula . They may be distinguished by an apically located dorsal lobe on the gonostylus and its six megasetae, and a narrower tegmen in the hypopygium in P. ellipsoidea ; a subapically located dorsal lobe on the gonostylus and its five megasetae in P. latilingula . By its apically located dorsal lobe on the gonostylus, P. ellipsoidea is also similar to P. plusiochaeta Hippa & Vilkamaa, 1991 and P. prosciaroides Hippa & Vilkamaa, 1991 , but the latter two species have bare M and Cu wing veins.

Etymology. This species is named after its oval shape of the gonostylus, from the Latin adjective ellipsoideus, meaning oval.

Figures

FIGURE 6. Prosciara ellipsoidea 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 24. Geographical distribution of Prosciara from China.