Kapsa (Rigida) brevis Cao & Zhang, sp. nov.

4. Kapsa (Rigida) brevis Cao & Zhang sp. nov.

(Figs 1 i–l, 8)

Description. Body (Fig. 1 i, j) sordid yellow. Coronal suture (Fig. 1 k) short, not reaching midlength of vertex. Face (Fig. 1 l) long.

Abdominal apodemes broad but short, extended to the hind margin of the 3rd sternite. Anal tube appendage (Fig. 8 a–c) tapering apically, apex curved laterally from hind view.

Pygofer dorsal appendage (Fig. 8 a–c) falcate, basal 2/3 slim, pointed apically and curved ventrad. Subgenital plate (Fig. 8 a, e) with 4 lateral macrosetae, peglike microsetae of basal group comparatively longer. Paramere (Fig. 8 f) with apical part relatively short, preapical lobe small. Connective (Fig. 8 g) with lateral arms short, manubrium long. Aedeagus shaft (Fig. 8 h, i) tubular, denticulate on distal half, dorsal apodeme large, basal process small; gonopore terminal, ventral.

Measurement. Body length: males 3.2mm.

Material examined. Holotype: 3, China: Tibet, Yigong, 2300m, 1–12 vi 1978, coll. Li Fasheng. Paratypes: 23, China: Tibet, Milin, 2950m, 5 vi 1978, coll. Li Fasheng.

Remarks. This species resembles K. alba, but has the paramere apex much shorter, the connective arms shorter and the manubrium longer, and the aedeagus with a basal process.

Etymology. The specific name is derived from the Latin word “ brevis ”, referring to the short arms of the connective.