Kryptosega sinensis Li & Xu, sp. nov.

Kryptosega sinensis Li & Xu, sp. nov.

(Figs 1–7)

Material examined. Holotype: ♂, CHINA: Yunnan, Gejiu, Lvchun (22°54'01''N 103°13'49''E), 25.VII.2003, Qiang Li (SCAU). Paratype: 1♂, CHINA: Hainan, Wuzhishan, Shuiman Town (18°52'55''N 109°40'01''E), 15–18.V.2007, Jie Zeng (SCAU).

Diagnosis. Male. Body without metallic tints dorsally; F1 1.6 × as long as F2; scapal basin shallow, with polished median stripe and coarse transverse ridges. Female unknown.

Description. Holotype. Male. Body length 5.3 mm; fore wing length 5.2 mm; MOL=2.0 MOD; MS=2.2 MOD; OOL=2.3 MOD; POL=0.8 MOD; SD=1.3 MOD; ratios S:F1:F2:F3=1.5:1.9:1.2:1.1.

Head. Frons and vertex with punctures 0.3 MOD apart; scapal basin shallow, with polished median stripe and coarse transverse ridges laterally; head as long as wide; eye not encircled by carina; MS less than half of eye height; ocellar triangle obtuse isosceles; clypeus smooth and rounded apically; F1 4.8 × as long as wide; F2 3.0 × as long as wide; F3 2.8 × as long as wide; F11 5.5 × as long as wide.

Mesosoma. Pronotum, mesoscutum, mesoscutellum and metanotum with punctures 0.6–1.2 PD apart; pronotum 0.8 × as long as mesoscutum; notauli with posterior third distinct and anterior part faint; mesopleuron with punctures 0.6–1.2 PD apart; metanotum triangular, medially 0.9 × as long as mesoscutellum, enclosure with reticulo-rugose; metapleuron depressed, mostly polished and almost impunctate; propodeum rounded posteriorly in dorsal and lateral view, with three transverse carinae; anterior two carinae touch each other medially forming X-shape on dorsal surface; posterior surface with irregular rugosity, separated from dorsal surface by posterior transverse carina.

Metasoma. T2 0.8 × as long as broad anteriorly; ratios T3:T4:T5=4:1:7.

Color. Antenna blackish-brown, with scape and pedicel yellowish-brown; mandible yellowish-brown, with apex dark reddish-brown; head and mesosoma black, without metallic tints dorsally; coxae and trochanters whitish; femora, fore and mid tarsi yellowish; hind tarsi brown; metasoma brown to blackish-brown.

Variation. Paratype. Body length 6.4 mm. Fore wing length 6.2 mm. Other characteristics similar to holotype.

Female. Unknown.

Distribution. China (Yunnan, Hainan).

Etymology. The specific name is related with the type locality, China.

Remarks. Kryptosega sinensis Li & Xu, sp. nov. is the first species of the genus recorded from Oriental Region and China.