Stegana (Steganina) langufoliacea sp. nov.

(Figs 16–22)

Diagnosis. This species is very similar to S. acantha sp. nov. in the characters of male terminalia, but can be differentiated from it by having the articulating-to-aedeagus plate weakly sclerotized, lacking serrate processes (Figs 19, 20), the aedeagus bifurcated form medial portion: ventral part not divided: dorsal part laterally with several serrate processes, apically roundly convex in ventral view (Figs 19, 20).

Description. Male: Pedicel almost black, yellow medially. Mesonotum black, with yellowish brown patches posteolaterally. Basisternum black. Scutellum black, pale at tip. Fore femur distally with 6 thick setae on anteroventral. All abdominal sternites brown, 2.5 times as broad as wide. Male terminalia: Epandrium with approximately 19 setae near posterior margin on each body-side (Fig. 16). Hypandrium slightly concave anteromedially (Fig. 19). Aedeagus slightly sclerotized (Figs 19, 20). Gonopods strongly sclerotized, apically round and slightly curved dorsad, with numerous, minute serrate processes (Figs 21, 22).

Measurements. BL = 4.16 mm in the holotype (4.15 mm in 13 paratype), THL = 1.86 mm (2.09 mm), WL = 3.12 mm (3.03 mm), WW = 1.60 mm (1.56 mm), arb = 9/4 (8/4), avd = 0.58 (0.55), adf = 1.20 (1.10), flw = 1.50 (1.40), FW/HW = 0.33 (0.42), ch/o = 0.27 (0.29), prorb = 1.20 (damaged), rcorb = 0.80 (0.72), vb = 0.59 (0.56), dc1 = 0.36 (0.45), presct1 = 0.73 (0.45), sct1 = 1.80 (1.80), sterno = 0.92 (0.91), orbito = 1.50 (1.13), dcp = 0.18 (0.20), sct1p = 2.20 (2.00), C = 1.93 (1.93), 4c = 1.30 (1.19), 4v = 2.18 (1.68), 5x = 2.00 (2.00), ac = 21.50 (17.60), M = 0.61 (0.59), C3F = 0.82 (0.78).

Specimen examined. Holotype: 3 (SCAU, No. 120899), CHINA: Maoershan, Guilin, Guangxi, altitude 700 m, 24.ix.2006, on tree trunk, JJ Jiang. Paratype: 13 (SCAU, No. 120900), same data as holotype.

Distribution. China (Guangxi).

Etymology. A combination of the Latin words: langu- and foliacea, referring to the articulating-to-aedeagus plate weakly sclerotized.