Embrikstrandia unifasciata ( Ritsema, 1897 )

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 : 63-67

Embrikstrandia unifasciata ( Ritsema, 1897)

( Figs 8–15 , 19–21 )

Zonopterus unifasciatus Ritsema, 1897: 376 .

Embrik­Strandia unifasciata (Ritsema) , Gressitt, 1940: 58; Gressitt, 1951: 192; Podany, 1968: 115; Gressitt, Rondon & Breuning, 1970: 137; Nakamura, Makihara & Saito, 1992: 42; Hua, Nara & Yu, 1993: 85, 207.

Embrikstrandia unifasciata (Ritsema) ; Heffern, 2005: 21.

Male Length: 18–24 mm; humeral width: 5–7 mm. Body purplish­black. Elytra crossed by a broad, pale­yellow band, in which the breadth varies from 4 cm to 8 cm ( Figs 8–15 ), but is never as narrow as in E. bimaculata ( Fig. 4 ) and the borders less sinuate; antennae with six to seven apical segments ochraceous; ventral surface and legs purplish. Body clothed with pubescence corresponding to ground colour, except on abdomen, where it is somewhat silvery, that on pronotum fairly long and dense.

Body moderately large. Mandibles moderately stout and coarsely punctate, with apex slightly curved to the central line of head ( Fig. 19 ), and lateral surface flattened ( Figs 20–21 ). Frons densely punctate; clypeus more sparsely so; vertex fairly broad, feebly concave, grooved medially; antennae barely longer than body, fifth and following segments tricarinate and slightly angulated ectoapically, third segment a little shorter than following two segments combined; pronotum broader than long, constricted apically and basally, bluntly tuberculate laterally, its surface moderately rugulose, but largely hidden by pubescence; scutellum narrowly triangular, concave; elytra conjointly rounded apically, micropunctulate; metepisternum densely punctured; femora more grossly punctate; first metatarsal segment one and one­half times as long as following two segments together.

Female. Length: 26–29mm; humeral width: 8–9 mm. Similar to male, antennae not quite as long as body.

Material examined. More than fifty individuals from Guangxi and Hunan Province are examined.

Distribution. CHINA (Hubei, Hunan,Fujian, Guangdong, Guangxi, Hainan), VIETNAM, LAOS, INDIA.

Figures

FIGURES 8 – 11. Embrikstrandia unifasciata (Ritsema), dorsal habitus, showing individuals having antennae with seven ochraceous apical segments.

FIGURES 12 – 15. Embrikstrandia unifasciata (Ritsema), dorsal habitus, showing individuals having antennae with six ochraceous apical segments.

FIGURES 16 – 21. 16 – 18. Head of Embrikstrandia pubemaculata, new species (holotype), frontal view and lateral view. 19 – 21. Head of Embrikstrandia unifasciata (Ritsema), frontal view and lateral view.

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