Pseudostegana bilobata, Li & Gao & Chen, 2010

Pseudostegana bilobata View in CoL sp. nov.

( Figure 1C,D View Figure 1 ; 2B View Figure 2 ; 4 View Figure 4 )

Diagnosis

Medial, dark band much broadened and with one distinct, protruded part submedially ( Figure 2B View Figure 2 ); paramere shallow split apically in lateral view ( Figure 4E View Figure 4 ).

Description

Only important characters are given here.

Head. Ocellar triangle mostly brownish black, brown on lower a quarter. Frons brown. Pedicel greyish brown above, greyish yellow below; first flagellomere greyish yellow on inner one-third, dark brown on outer two-thirds. Face brownish black. Clypeus dark brown. Gena brown. Palpus brown and slender, rod-shaped in male.

Thorax. Scutum yellow on anterior half, brown on posterior half. Pleura brown to black. Katepisternal setae two. Scutellum brown.

Legs. Yellow, black on knee joints of mid- and hindlegs.

Abdomen. Tergites glossy, yellow on first and second, dark brown on the rest. Sternites greyish yellow.

Male terminalia. Epandrium roundly protruded on ventral margin, with about 23 setae ( Figure 4A View Figure 4 ). Surstylus protruded on posteroventral corner ( Figure 4A,B View Figure 4 ).

Cercus ventrally round ( Figure 4A,B View Figure 4 ). Aedeagus apically sclerotized, round in ventral view, pointed in lateral view ( Figure 4D,E View Figure 4 ).

Measurements

BL = 2.87 mm in holotype, ThL = 1.44 mm, WL = 2.63 mm, WW = 1.16 mm, arb = 6/1, avd = 0.86, adf = 1.75, flw = 2.50, FW/HW = 0.39, ch/o = 0.08, prorb = 1.00, vb = 0.71, dcl = 0.22, sctl = damaged, sterno = 0.75, orbito = 0.58, dcp = 0.20, sctlp = 1.00, C = 2.04, 4c = 1.77, 4v = 3.30, 5x = 0.82, ac = 14.4, M = 0.69, C3F = 0.81.

Type material

Holotype male ( SCAU, No. 120554), China: Puer , Yunnan, 22°47′ N, 101°02′ E, altitude 1400 m, 18 September 2007, swept over tussock, J.J. Gao. GoogleMaps

Etymology

From the Latin words: bi - plus lobatus, referring to the paramere apically shallowly bifurcated.

Distribution

China ( Yunnan).