Anthidium (Anthidium) pseudomontanum Niu & Zhu, sp. nov.

(Fig. 20 a–f, female)

Diagnosis: The new species is very similar to A. montanum Morawitz, 1865, but the clypeal margin is apically straight and smooth, with two distinctly lateral tubercles (Fig. 20c); on the contrary, the clypeal apical margin of female A. montanum Morawitz, 1865 is coarsely serrate, but still nearly straight medially (Fig. 13b, Fig. 13c).

Description: Female. BL = 8.5–9.5 mm (Fig. 20a); head broader than long, HW: HL = 63: 57 (Fig. 20b); gena slightly broader than eye, GW: EW = 18: 13. Clypeus broader than long, apical margin of clypeus straight and smooth, with two distinctly lateral tubercles (Fig. 20c); mandible with six sharp teeth separated by acute notches, apical one longest (Fig. 20d); omaular carina absent; pronotal lobe rounded anteriorly; scutellum rounded posterolaterally, without tooth, not greatly overhanging metanotum and propodeum (Fig. 20e); propodeum without fovea behind spiracle; fore wing with two submarginal cells, cells nearly equal in length, second recurrent vein meets distal to second submarginal crossvein (Fig. 20a); arolia absent; metasomal terga without maculation (Fig. 20f). Integument black, except yellow on one small marking on vertex near apex of eye (Fig. 20a), dull brownish on tegula (Fig. 20e), dull blackish-brown on coxae, trochanters, femora and tibiae, reddish-brown on tarsi (Fig. 20a), slightly brownish on sterna. Fore wing hyaline, veins and stigma dark brownish (Fig. 20a). Pubescence on T1–T2 pale yellowish-white (Fig. 20f), T3 mainly covered with reddish-brown pubescence, but mixed some pale separated yellowish-white pubescence medially, T4–T6 covered with reddish-brown pubescence (Fig. 20f); lower part of face with long pale yellowish-white pubescence, mixed with some yellowish-brown pubescence (Fig. 20c); vertex, scutum, scutellum and mesepisternum covered with long pale yellowish-white pubescence (Fig. 20a, Fig. 20b, Fig. 20e); gena covered with long pale yellowish-white pubescence, mixed with some blackish pubescence (Fig. 20a); tarsi covered with reddish-brown hair, femora and tibiae covered with long pale yellowish hair; scopa golden.

Male, unknown.

Type material: Holotype, ♀, China, Xinjiang: Taxkorgan Tajik Zizhixian, Hongqilafu (36º55′N, 75º33′E), 4400–4600 m, 12.VIII.1989, leg. Xue-Zhong ZHANG; paratypes: 1 ♀, same label information as holotype, 1 ♀, 4500 m, 13.VIII.1989, another information as the holotype.

Distribution: China (Xinjiang).

Floral association: unknown.

Etymology: The specific name means the new species is very similar to A. (A.) montanum Morawitz, 1865 .