Carchesiopygus impariporus (Beeson)

Beaver, Roger A. & Sanguansub, Sunisa, 2015, A review of the genus Carchesiopygus Schedl (Coleoptera: Curculionidae: Platypodinae), with keys to species, Zootaxa 3931 (1), pp. 401-412 : 408

Carchesiopygus impariporus (Beeson)

(Figs 5, 8)

Crossotarsus impariporus Beeson, 1937: 62 .

Carchesiopygus impariporus (Beeson) : Browne, 1962: 647.

Taxonomy. The holotype and allotype are inaccessible (IFRI), but we have examined a male paratype from India (NHML), and a male from Vietnam identified by Schedl (HMNH), as well as specimens from China, India, Laos and Vietnam in MNHP, NHMB, NKME, and RAB. The species is easily recognised in both sexes by the asymmetry of the mycangial pores on the pronotum, with a large pore on one side (usually the left), and a smaller pore on the opposite side.

Distribution. China (Hainan, Xizang, Yunnan), India (Assam, Sikkim), Laos, Vietnam.

New records. CHINA, S.Yunnan, (Xishuangbanna), 20 km NW Jinghong, vic. Man Dan (NNNR), 22o07.80'N, 100o40.05'E, 740 m, rubber plant[ation], EKL, 6.vi.2008 (A. Weigel) (1♀); as previous except: 23 km NW Jinghong, vic. Na Ban (NNNR), 22o9.49'N, 100o39.92'E, 730 m, secondary forest, EKL, 30.x.2008 (L. Meng) (1♂); as previous except: transition zone, M[alaise]F[alle], 28.vi.2008 (A. Weigel) (1♀); as previous except: 30 km NW Jinhong, Seng Gang Ha Ni, 1700 m, Fluss, 29.v.2003 [no collector] (1♀); LAOS, Bolikhamxai prov., Ban Nape (8 km NE), 18o21'N, 105o08'E, c. 600 m, 1–18.v.2001 (V. Kubáň) (3♂, 2♀); Houa Phan prov., Ban Saluei to Phou Pane Mt., 20o12'– 13o5'N, 103o59.5'– 104o01'E, 1340–1870 m, 15.iv.–1.v.2009 ( Lao collectors) (1♀); Phongsaly prov., Ban Sano Mai, 21o21'N, 102o03'E, c. 1150 m, 19–26.v.2004 (V. Kubáň) (5♂, 1♀); as previous except: env. Phongsaly, 21o41–2'N, 102o06–08'E, c. 1500 m, 28.v.–20.vi.2003 (V. Kubáň) (5♂, 1♀).