Chydaeus semenowi ( Tschitscherine , 1899)

Kataev, Boris M., Liang, Hongbin & Kavanaugh, David H., 2012, Contribution to knowledge of the genus Chydaeus in Xizang Autonomous Region [Tibet] and Yunnan Province, China (Coleoptera, Carabidae, Harpalini), ZooKeys 171, pp. 39-92 : 62

Chydaeus semenowi ( Tschitscherine, 1899) Figs 59 71

Material examined.

A total of 18 specimens (13 males and 5 females, including 5 males and 2 females in CAS, 7 males and 3 females in IOZ, and 1 male in ZIN) were examined from the following localities: China. Xizang Autonomous Region. Nyalam County:1 male, Xigaze, 3800 m, 6.VI.1961 (IOZ); 1 male, Nyalam, Zham, 3300 m, 7.VII.1975 (IOZ); 1 male, Nyalam, Zham, 3400 m, 7.VII.1975 (IOZ); + many additional specimens from Nyalam county (IOZ). Yunnan Province. Gongshan County: 2 males, 2 females, No 12 Bridge to Dulongjiang, 27°42'54"N, 98°30'08"E, 2770 m, 30.IV.2002, H.B. Liang, W. Ba & X. Li leg. (CAS, IOZ); 5 males, 1 female, same data, but 3.V.2002, H.B. Liang, W. Ba, G. Yang & L. Dou leg. (CAS, IOZ, ZIN); 1 male, Heiwadi, on new road to Dulongjiang, 27°47'39"N, 98°35'13"E, 2020 m, 20.IV.2002, H.B. Liang, W. Ba, G. Yang & X.Q. Li leg. (IOZ); 2 females, new road to Dulongjiang, 27°45'57"N, 98°36'12"E, 2200 m, 12.IV.2002, H.B. Liang & W. Ba leg. (CAS, IOZ); 1 female, Gaoligong Shan, Nujiang Pref., Danzhu He drainage, 13.5-15.7 air km SSW of Gongshan, 2700-3100 m, 27.63063°N, 98.62074°E to 27.62705°N, 98.59204°E, 30.VI.-5.VII.2000, Stop 00-17A, D. Kavanaugh, C.E. Griswold, H.B. Liang, D. Ubick & D.Z. Dong leg. (CAS); 1 male, Dulongjiang, Sandui, Bapo to Yakou, 27.71672°N, 98.42231°E, 1333 m, 30.X.2004, V.F. Lee leg. (CAS).

Distribution.

According to Kataev and Schmidt (2006), Chydaeus semenowi is widely distributed over the Himalaya from Uttar Pradesh (India) to Bhutan, at elevations of 2400-3800 m. This species is recorded here from China (southern Xizang and northwestern Yunnan) for the first time ( Fig. 59 ).

Habitat.

Specimens were collected in roadside and road cut open areas, hidden under stones and other debris during daylight hours and active on the soil surface at night ( Figs 71 ).

Remarks.

Chydaeus semenowi , a member of the semenowi group ( Kataev and Schmidt 2006), is the most frequently encountered Himalayan species of Chydaeus . Specimens examined from southern Tibet are very similar in their morphology to other specimens from the Himalaya, but those from Yunnan are characterized by a smaller denticle at the apex of each pronotal basal angles, so they may represent a distinct geographical form.

Figures

Figures 58 - 59. Toporelief map of southeastern Asia, illustrating localities for Chydaeus species 58 Chydaeus satoi Ito = yellow square and Chydaeus convexus Ito = red dots 59 Chydaeus semenowi (Tschitscherine) = red dots and Chydaeus malaisei Kataev & Schmidt = yellow squares. Only new records reported here are shown. Scale bar = 300 km (in 100 km increments).

Figures 70 - 71. Digital photographs of habitats for Chydaeus species 70 Nankang Yakou, Longyang County, Yunnan Province, China, ca. 2130 m; locality for Chydaeus andrewsi andrewsi Schauberger, Chydaeus convexus Ito, and Chydaeus salvazae Schauberger 71 Danzhu Valley, Gongshan County, Yunnan Province, China, ca. 2700 m; locality for Chydaeus semenowi (Tschitscherine).