Chydaeus bedeli vietnamensis Kataev & Schmidt, 2002

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 : 74-75

Chydaeus bedeli vietnamensis Kataev & Schmidt, 2002 Fig. 62

Material examined.

A total of 6 specimens (4 males and 2 females, including 4 males and 1 female in cBL&KB and ZIN and 1 male in cFED) were examined from the following localities: China. Yunnan. Longxiang County (District): 1 male, ENE Lincang, 23°57'36"N, 100°15'21"E, 3340 m, 28.VI.2011, I. Belousov, I. Kabak & A. Korolev leg. (ZIN). Shuangjiang County: 3 males, SSE Shuangjiang Town, 23°22'32"N, 99°53'47"E - 23°22'22"N, 99°53'26"E, 2790-2950 m, 23.VI.2011, I. Belousov, I. Kabak & A. Korolev leg. (cBL&KB, ZIN). Vietnam. Lao Cai Province. 1 female, 6 km W of Sa Pa, N slope of Phansipan Mt. Area, 2000-2100 m, near Tram don (base of Hoang Lien Nat. Park), 22°21'N, 103°46'E, V.2005, A.V. Abramov leg. (Exp. of Russia-Vietnam Tropical Centre) (ZIN); 1 male, Sa Pa env., ca 1600 m, V.2006, A. Anitchkin leg. (cFED).

Distribution.

Previously, Chydaeus bedeli vietnamensis was known from a single male collected in northern Vietnam (type locality: northern slope of Fansipan Mt., Sa Pa, 22°17'N, 103°44'E, 1525 m). Based on the new records reported here, this subspecies occurs also in southern Yunnan Province, China ( Fig. 62 ).

Remarks.

Specimens from Yunnan are similar in external features and male genitalia to those from Vietnam, but they are slightly smaller (body length 9.0-10.2 mm versus 10.7-10.8 mm in males from Vietnam, including the holotype) and have more markedly prominent denticles at their basal pronotal angles. We add the following mensural data to describe the Yunnan specimens and thereby expand on Kataev & Schmidt’s description of this taxon: Proportions (males from Yunnan): HWmax/PWmax = 0.71-0.72; HWmin/PWmax = 0.59-0.61; PWmax/PL = 1.52-1.59; PWmax/PWmin = 1.26-1.37; EL/EW = 1.34-1.44, EL/PL = 2.62-2.85, EW/PWmax = 1.23-1.28.

Figures

Figures 62 - 63. Toporelief map of southeastern Asia, illustrating localities for Chydaeus species 62 Chydaeus bedeli (Tschitscherine): Chydaeus bedeli difficilis Kataev & Schmidt = red dots, Chydaeus bedeli interjectus Kataev & Schmidt = green diamonds, and Chydaeus bedeli vietnamensis Kataev & Schmidt = yellow squares 63 Chydaeus similis Kataev & Schmidt = yellow squares and Chydaeus irvinei (Andrewes) = red dot. Only new records reported here are shown. Scale bar = 300 km (in 100 km increments).