Stegana (Steganina) oligochaeta sp. nov.

(Figs 28–34)

Diagnosis. This species is related to S. protuberans sp. nov., but clearly distinguishable from the latter by the epandrium and aedeagus (in S. protuberans: epandrium not broadened on posterior margins, approximately twice as high as wide; aedeagus lacking sclerotized, round, minute processes basoventrally).

Description. Male terminalia: Epandrium broadened on posterior margins, approximately 3/5 as high as wide, protruded ventrally (Fig. 28). Cercus with sporadic pubescence (Fig. 28). Surstylus with 8 prensisetae submedially (Fig. 29). Tenth sternite sclerotized and deeply separated basally, protruded apically (Fig. 30). Paramere with ca. 2 sensilla (Figs 31, 32). Aedeagus with scalelike, minute processes dorsally and several sclerotized, round, minute processes basoventrally, slightly semilunar on opening in ventral view (Figs 31, 32). Dorsomedial projection of gonopods with serrated, minute processes distally (Fig. 34).

Measurements. BL = 2.78 mm in holotype (13 paratype 2.89 mm), ThL = 1.40 mm (1.36 mm), WL = 2.94 mm (3.09 mm), WW = 1.26 mm (1.38 mm), arb = 9/6 (9/5), avd = 0.80 (0.91), adf = 1.43 (1.38), flw = 1.86 (1.63), FW/HW = 0.48 (0.49), ch/o = 0.21 (0.24), prorb = damaged (damaged), rcorb = 0.85 (damaged), vb = 0.33 (0.40), dcl = 0.48 (0.48), presctl = 0.44 (0.45), sctl = damaged (damaged), sterno = 0.88 (0.86), orbito = 2.00 (2.25), dcp = 0.19 (0.17), sctlp = 1.78 (1.90), C = 1.97 (2.00), 4c = 1.17 (1.06), 4v = 1.90 (1.76), 5x = 1.45 (1.33), ac = 11.67 (12.00), M = 0.53 (0.47), C3F = 0.68 (0.66).

Type material. Holotype 3 (SCAU, No. 120768), CHINA: Mt. Jizu, Binchuan, Yunnan, 1900 m, 23.vii.2006, HL Cao. Paratype: CHINA: 13 (SCAU, No. 120769), Mt. Wuliang, Nanjian, Yunnan, 25.vii.2006, HL Cao. Distribution. China (Yunnan).

Etymology. A combination of the Greek words: oligos (= few) and chaite (= bristle, seta), referring to the cercus with sporadic pubescence.