Svetlanaebyctiscus dundai Legalov, 2008

Legalov, Andrei A., 2008, New species of the tribe Byctiscini (Coleoptera, Rhynchitidae) from Yunnan, Baltic Journal of Coleopterology 8 (1), pp. 49-54 : 49-50

Svetlanaebyctiscus dundai Legalov , sp.n. ( figs. 1, 3 , 9, 11, 12, 20 )

Holotype. Male ( NMPC), China, Yunnan prov., Weibaoshan mts.

Description. MALE: Body red-brown, with appressed light setae. Setae weakly condensed on the basis of the pronotum, scutellum and thorax. Rostrum long, thin, lustrous, weakly curved, rarely and small punctate, with weakly carina in first third, 8.22 times as long as wide, 1.72 times as long as pronotum. Antennae located hardly before the rostrum middle. Forehead wide, convex, long punctate. Eyes not protruding. Vertex lightly punctate. Temples short. Antennae long. Scapus and 1st segment long oval, 2nd-4th segments elongated, 5th segment oval, 6th and 7th segments rounded-oval. Clava wide. Pronotum weakly transversal, campaniform, 1.12 as wide as long, narrowed to the apex, lustrous, densely punctate, with weakly middle striae. Greatest width near basis. Sides weakly rounded on middle. Scutellum trapezoid, wide. Elytra wide, equal length and width. Humeri weakly convex. Intervals wide, convex, lustrous, small punctate. Scutellar striole present. Striae narrow. Points in striae small and not merging. 9th striae merge with 10th striae behind the middle of elytron. Thorax small and densely punctate. Prothorax without tooth. Metepisternum wide. Abdomen convex, small rugosity-punctate. First and 2nd ventrites wider, 3rd ventrite narrower, 4th ventrite narrow, 5th ventrite very narrow. Pygidium convex, densely punctate. Legs long. Femora weakly widened. Protibiae straight lines, weakly expanded to apex. Meso- and metatibiae shorter, weakly biconcave. Tarsi long. First segment elongated, 2nd segment triangular, 3rd segment bilobed. Clausal segment elongated. Claws with teeth. Length of body: 3.8 mm.

Diagnosis. This new species is very similar to Svetlanaebyctiscus vitis ( Ter-Minassian, 1959) from Russian Far East and Eastern China but can be distinguished by the more dark body, more curved and shorter rostrum, more direct sides of the pronotum, wider elytra, shorter and wide 1st segment of the tarsi, longer aedeagus and basal sclerite of the endophallus.

Etymology. This new species is named in honour of R. Dunda.

Distribution. China (Yunnan).

Figures

Figs. 1-4. Svetlanaebyctiscus sp.: 1 - S. dundai (dorsally), 2 - S. vitis (dorsally), 3 - S. dundai (laterally), 4 - S. vitis (laterally).

Figs. 9-21. Byctiscini sp. (dorsally): 9 - aedeagus of S. dundai, 10 - aedeagus of S. vitis, 11 - tegmen of S. dundai, 12 - 8th tergite of S. dundai, 13 - 8th tergite of N. weibaoshanensis, 14-15 - aedeagus of N. hanungensis, 16-17 - aedeagus of N. weibaoshanensis, 18 - tegmen of N. hanungensis, 19 - tegmen of N. weibaoshanensis, 20 – basal sclerite of endophallus of S. dundai, 21 - basal sclerite of endophallus of S. vitis.