Megalotomus zaitzevi Kerzhner, 1972

Yi, Wenbo, Wang, Shijun, Zhang, Hufang & Bu, Wenjun, 2022, Notes on Megalotomus Fieber, 1860 in the Palaearctic Region (Hemiptera, Heteroptera, Alydidae), Zootaxa 5128 (2), pp. 211-224 : 219

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.

Figures

FIGURES 17–22. Megalotomus spp., dorsal, lateral and ventral views. Figs. 17–19, M. zaitzevi Kerzhner, 1972, male (China: Xinjiang Autonomous Region, Yuli County); Figs. 20–22, M. acutulus Liu & Liu, 1998, female (China: Inner Mongolia, Chifeng City, Keshiketeng Banner). Figs. 17 and 20, dorsal view; Figs. 18 and 21, lateral view; Figs. 19 and 22, ventral view. Scale in mm.

FIGURES 23–43. Male genitalia of Megalotomus spp. and Alydus calcaratus (Linnaeus, 1758). Figs. 23–25, M. angulus (Hsiao, 1965) comb. nov.; Figs. 26–28, M. junceus (Scopoli, 1763); Figs. 29–31, M. ornaticeps (Stål, 1858); Figs. 32–34, M. castaneus Reuter, 1888; Figs. 35–37, M. zaitzevi Kerzhner, 1972; Figs. 38–40, M. acutulus Liu & Liu, 1998; Figs. 41–43, Alydus calcaratus (Linnaeus, 1758); Figs. 23, 26, 29, 32, 35, 38, 41, genital capsules, dorsal view, parameres removed, pilosity only shown on left side; Figs. 24, 27, 30, 33, 36, 39, 42, left parameres, dorsal view; Figs. 25, 28, 31, 34, 37, 40, 43, same, lateral view. Scale in mm.