Polyplectropus cubitalis sp. nov. Zhong and Yang

(Figs. 1–7)

Adult. Length of forewing 5.4–6.0 mm (N = 2). Head light brown with yellowish antennae, pronotum dark yellow, meso-, metanota and forewings light brown.

Male genitalia. Posterior margin of sternum IX with semicircular excision in ventral view. Terga IX + X short, sub-trapezoid in dorsal view. Preanal appendage approximately 4 times as long as apical width, narrowed at 1/3 distance from rounded apex in lateral view. Dorsobasal process of preanal appendage needlelike and recurved caudad at 1/4 distance from base in lateral view. Basal half of inferior appendage broad and apical half slender in lateral view, with distal end extending beyond distal end of preanal appendage; in ventral view, inferior appendages elbowed, with apical half gradually narrowed and apex slightly concave mesally; ventromesal lobe located at basal half of inferior appendage and setose, with apical “U” excision in lateral view; in ventral view, with apical margin toothed irregularly. Subphallic sclerite trough-like, with lateral walls strongly erect and bottom expanded horizontally in caudal view; in ventral view, its apex with mesal “U” excision. Phallus simple tube, about 4 times as long as average width.

Holotype: male, Guizhou Province, Chi-shui County, 28.34°N, 105.42°E, Hu-shi-zhen, Nan-zhu-linchang, Jin-sha-gou, Gong-ye-gan-gou, 9 November 1995, Coll. WANG Bei-Xin, SUN Chang-Hai. Paratype: 1 male, same data as holotype.

Diagnosis. This new species belongs to the P. anakgugur Group and is very similar to Polyplectropus anakgugur Malicky 1995, from Malaysia. It differs in that 1) the basal half of inferior appendage is broad and the apical half slender in lateral view (equally wide in P. anakgugur); 2) terga IX+X has no process (with a pair of horn-shaped processes in P. anakgugur); 3) the apex of the subphallic sclerite has a mesal “U” excision (a broad excision, with the mesal portion strongly protruded and with a small notch at its center in P. anakgugur).

Etymology. The species name is a Latin adjective cubitalis (= cubital) to indicate the shape of inferior appendages in ventral view.

Distribution. China (Guizhou).