Prosciara myriacantha 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 : 317-320

Prosciara myriacantha Shi & Huang , sp. nov.

( Figs. 9 , 23 D, 24)

Specimens examined. Holotype, male. China, Zhejiang province, Lishui, Mt. Fengyangshan, plant nursery, malaise trap, 07.IV.2008, Sheng-Long Liu [SM00294].

Description (Male). Color. Head dark brown; antenna, thorax, abdomen and hypopygium yellowish-brown; palpus and legs yellow; wing fumose. Head ( Fig. 9 C, D). Eye bridge with 3 rows of facets. Prefrons with 25 setae. Clypeus with 1 seta. Basal segment of palpus with 2 setae; 2nd segment with 14 setae; 3rd segment with 14 setae. Length/width of 4th flagellomere: 2.57. Thorax. Anterior pronotum with 5 setae, episternum 1 with 7 setae. Wings ( Fig. 23 D). Wing length 3.28 mm, width/length: 0.37. c/w: 0.45. R1/R: 0.94. r-m with 2 setae, stM with 2 setae, M1 and M2 with numerous setae, Cu1 and Cu2 with numerous setae. Legs. Foretibia with a comb of 9 setae ( Fig. 9 E). Length of spur/width of foretibia 1.73. Length of femur/length of metatarsus: foreleg 0.73. Length of metatarsus/ length of tibia: foreleg 0.84, hind leg 0.64. Length of hind tibia/length of thorax 2.15. Foretibia with 2 dorsal, 1 ventral, 2 prolateral and 2 retrolateral spinose setae. Midtibia with 1 dorsal spinose setae. Hypopygium ( Fig. 9 A, B). Sternite 10 with 2 setae on each half.

Distribution. China (Zhejiang, Fig. 24 ).

Remarks. By its numerous slender megasetae on a subbasally located dorsal lobe on the gonostylus, the new species resembles P. filichaeta Hippa & Vilkamaa, 1991 and P. decamera Hippa & Vilkamaa, 1991 . But it differs from P. filichaeta by a distinct intercoxal lobe on the hypopygium; and from P. d e c a m e r a by setose M and Cu, and nine megasetae on the dorsal lobe, while more than ten in P. decamera .

Etymology. This species is named after its numerous megasetae on the dorsal lobe on the gonostylus, from the Latin adjective myriacanthus, meaning numberless megasetae.

Figures

FIGURE 9. Prosciara myriacantha 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.