Prosciara gyracantha 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 : 305-307

Prosciara gyracantha Shi & Huang , sp. nov.

( Figs. 2 , 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, Jie Zeng [SM00865].

Description (Male). Color. Head dark brown; antenna, thorax, abdomen and hypopygium yellowish-brown, the mesonotum brown; palpus and legs yellow; wing fumose. Head. Head in poor condition in the specimen studied. Length/width of 4th flagellomere: 1.77. Thorax. Anterior pronotum with 5 setae, episternum 1 with 7 setae. Wings. Wing length 2.61 mm, width/length: 0.38. c/w: 0.52. R1/R: 0.85. r-m with 3 setae, stM with a few setae, M1 and M2 with numerous setae, Cu1 with numerous setae and Cu2 bare. Legs. Legs missing in the specimen studied. Hypopygium ( Fig. 2 A, B). Sternite 10 with 1 seta on each half.

Distribution. China (Yunnan, Fig. 24 ).

Remarks. The new species and P. h e m i c r y p t a sp. nov. ( Fig. 3 A, B) are similar to P. pentadactyla Hippa & Vilkamaa, 1991 and P. t u rg i d a Vilkamaa & Hippa, 1996 in their setose M and Cu1, the form of the gonostylus and small indistinct setose intercoxal lobe on the hypopygium. However, P. gyracantha and P. h e m i c r y p t a differ from P. pentadactyla by the shorter dorsal lobe shifted towards the apex of a much inflated gonostylus, and differ from P. turgida by having five megasetae on the dorsal lobe on the gonostylus, while six megasetae in P. t u rg i d a. Moreover, P. hemicrypta may be distinguished from P. gyracantha by a dorsal lobe on the gonostylus located completely in dorsal side, not visible in ventral view.

Etymology. This species is named after its circularly located megasetae on the dorsal lobe, from the Latin adjective gyracanthus, meaning circularly located megasetae.

Figures

FIGURE 2. Prosciara gyracantha Shi & Huang, sp. nov., male, holotype. A, left gonostylus, ventral view; B, part of hypopygium, ventral view. Scale 0.10 mm.

FIGURE 3. Prosciara hemicrypta 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. Scale 0.10 mm.

FIGURE 24. Geographical distribution of Prosciara from China.