Megalotomus zaitzevi Kerzhner, 1972

(Figs. 17–19, 35–37)

Megalotomus zaitzevi Kerzhner, 1972: 350 . Holotype: ♂, Uzbekistan, Bukhara; ZMAS. Liu & Liu, 1998: 41–43; Nonnaizab et al., 1986: 305–313; Nonnaizab, 1999: 76–77; Dolling, 2006: 38.

Diagnosis. This species is recognized within the genus Megalotomus by a combination of the following characters: body size relatively moderate, 12.0–14.0 mm in length, reddish brown or yellowish brown, with small and red spots on legs and corium of forewing; posterior region of ocellus with black spot; posterior angle of pronotum acute, but not ending in sharp spine; surcapsular spines of male genital capsule curved, tapering to a point, with the apices close to each other; parameres elongate, broadly extended and strongly curving in middle, with a large and a small spine midway, terminating with 3–5 small spines on both sides.

Material examined. China: Inner Mongolia: 2 ♂♂, Ejin Banner, 980 m, 26-July-1991, Liu leg. ; Xinjiang Uygur Autonomous Region: 4 ♂♂, 5 ♀♀, Korla, Weili, ecological park of Primitive Populus euphratica forest, 25-August-2002, Weibing Zhu, Yunling Ke, Jun Lv leg. (All above specimens were housed in NKUM.) .

Distribution. Asia: China (Inner Mongolia, Xinjiang Uygur Autonomous Region), Kazakhstan (Asian part), Mongolia, Uzbekistan.

Remarks. This species differs from others in the genus by its coloration.