Embrikstrandia bimaculata, (White)

Huang, Jianhua, Zhou, Shanyi & Chen, Bin, 2006, Review of Chinese species of the genus Embrikstrandia Plavilstshikov, 1931 (Coleoptera: Cerambycidae: Cerambycinae) with description of a new species, Zootaxa 1340, pp. 57-68 : 59

yellow band on middle, or only with yellow spots ..................... E. bimaculata (White) ­ Pronotum clothed with dense black pubescence and moderately punctate; elytra crossed by a broad, pale­yellow band ...................................... E. unifasciata (Ritsema) Embrikstrandia bimaculata ( White, 1853)

( Figs 1–4 )

Callichroma bimaculatum White, 1853: 165 .

Callichroma davidis Deyrolle, 1878: 132 .

Callichroma davidis var. diversicornis Pic, 1925: 19 .

Embrik­Strandia bimaculata (White) , Plavilstshikov, 1931: 278; Gressitt, 1951: 191; Podany, 1968: 114; Nakamura, Makihara & Saito, 1992: 41; Hua, Nara & Yu, 1993: 85, 207.

Male. Length: 21–27 mm; humeral width: 6.5– 9 mm. Body black. Antennae with five to six apical segments testaceous; elytra with a narrow sinuate pale­yellow band on middle, or only with two irregular yellow spots of varying size and shape ( Figs. 1–4 ); legs and tibiae more or less violaceous. Pronotum with short testaceous pubescence. Elytra covered with black and yellow pubescence corresponding to ground colour, ventral surface of abdomen with sparse silvery pubescence.

Body moderately large. Head finely and densely punctate, vertex with coarse punctures and rugulae. Mandibles moderately stout and coarsely punctate, with lateral surface flattened and apex slightly curved to the central line of head. Clypeus sparsely punctate. Frons with a fine longitudinal sulcus. Antennal scape covered with dense punctures and its ectoapical angle blunt, sixth to tenth segments with sharp ectoapical angles. Pronotum longer than broad, opaque, subglabrous, and coarsely rugulose­punctate; lateral pronotal tubercles short and obtuse; disc coarsely punctate­rugulose. Scutellum triangular, slightly concave, finely and densely punctate, bearing long black hairs, with a glabrous longitudinal line in the middle. Elytra long, tapering posteriorly, with rounded apex; dorsum of elytra with dense contiguous punctures, and three vague longitudinal carinae in the yellow area. Hind femora extending beyond abdominal apex. First metatarsal segment longer than second and third segments combined. Posterior margin of apical abdominal ventrite slightly concave.

Female. Length: 24–30 mm, humeral width: 8–10 mm. Similar to Male. Hind femora just reaching abdominal apex. Posterior margin of apical abdominal ventrite more or less straight.

Material examined. One male, CHINA: Hupingshan Natural Reserve, Shimen County, Hunan Province, 2 July 2001, Peng Fu ( Fig. 1 ); one male, CHINA: Maoershan Natural Reserve, Xing’an County, Guangxi Autonomous Region, 8 July 2001, Jianhua Huang ( Fig. 2 ); one female, CHINA: Huangcao Town, Zixing County, Hunan Province, 5 June 1998, Jianhua Huang ( Fig. 3 ).

Distribution. CHINA (North China, Shaanxi, Sichuan, Guizhou, Yunnan, Jiangsu, Zhejiang, Jiangxi, Fujian, Hunan, Guangxi, Guangdong, Hongkong, Taiwan).

Figures

FIGURES 1 – 4. Embrikstrandia bimaculata (White), dorsal habitus.