Leptochilus (Lionotulus) callidus (Kostylev, 1940)

Figs 17-26

Odynerus callidus Kostylev, 1940: 33.

Leptochilus callidus: van der Vecht and Fischer 1972: 46.

Material examined.

1♀, 1♂, China, Inner Mongolia, Ewenki Autonomous Banner, Yimin Town, Five Pastureland, 8.VIII.2006, Tingjing Li (CNU) ; 2♂♂, China, Ningxia, Yinchuan City, Helan County, Jinshan Township, Lujiawazi, 38.694°N, 106.174°E, 1117 m, 21.VII.2020, Yujiang Yao, Rongyuan Zhang (CNU) ; 1♂, China, Ningxia, Wuzhong City, Yanchi County, Huamachi Town, Yikeshu Village, 37.891°N, 107.434°E, 1312 m, 25.VII.2020, Qianchen Wang, Rongyuan Zhang (CNU) .

Diagnosis.

Female body length 6.1 mm, forewing 5.7 mm (Fig. 17); male body length 4.9-5.5 mm, forewing 4.4-5.0 mm (Fig. 18); black, with the following parts light yellow: clypeus of male, scape ventrally in male, an anterior interrupted band of pronotum dorsally in male, outer margin of tegula, two spots on posterior margin of scutellum in female, apical margin of femora, tibiae (slightly dark ventrally) and tarsi, apical bands of T1-T2, apical small spots of S2 laterally; A8-A12 ventrally deep yellow. In front view, clypeus wider than long (1.3 × in female, 1.1 × in male), and apically with shallow emargination wider than depth (2.9 × in female, 2.7 × in male) (Figs 19, 20); clypeus in female with sparse and coarse punctures, interspaces between punctures with transverse wrinkles on apical half (Fig. 19), clypeus in male with sparse and small punctures (Fig. 20); clypeus and frons at lower part in male with dense white setae (Fig. 20); A13 almost parallel on both sides at the apex (Fig. 22); frons, vertex and gena with coarse and irregular punctures; frons punctures in male lager than those in female; occipital carina forming obvious angle latero-ventrally (Fig. 24). Mesosoma with irregular and coarse punctures, interspaces between punctures with minute punctures; posterior margin of mesoscutum and mesopleuron dorsally with dense punctures, interspaces between punctures reticulate; pronotal carina non-transparent and obvious (Fig. 21); metapleuron dorsally with coarse horizontal striae, ventrally leathery and with irregular fine striae; propodeum dorsally with coarse and dense punctures; carina degenerate between dorsal and posterior surfaces (Fig. 23); posterior surface with long and oblique striae mixed with coarse punctures, propodeal carina present in lower part and about 2/3 of propodeal concavity (Fig. 23). Metasoma leathery, with small and sparse punctures; the second metasomal segment with wide apical lamellae and there with a row of great punctures at base, interspaces between punctures short carina-formed (Fig. 25); S2 weak convex in lateral view (Fig. 25), with shallow longitudinal medial furrows at base, and half as long as S2 (Fig. 26).

Distribution.

China (new record: Inner Mongolia, Ningxia), Central Asia from Lake Aral to Gobi Desert.