中国天牛一新亚属及一新种(鞘翅目:天牛科)

A NEW SUBGENUS AND A NEW SPECIES OF LONGICORN BEETLES FROM CHINA (COLEOPTERA: CERAMBYCIDAE)

本文记述采自广西龙州的全天牛属Entelops Guerin一新亚属及一新种。模式标本保存于中山大学昆虫学研究所。 无刺全天牛亚属Aspineoentelops Hua新亚属 鞘翅末端近鞘缝处不具刺。 模式种:Entelops longzhouensis Hua Sp.nov. 新亚属与指名亚属Entelops(s.s.)Guerin等主要区别在于鞘翅末端不具刺。 龙州全天牛Entelops(Aspineoentelops)longzhouensis Hua新种(图1)

Aspineoentelops Hua subgen. nov.At the apex of elytron near the suture without a spine.Type species Entelops longzhouensis Hua sp. nov.Distinguished from the nominate subgenus Entelops (s. s) Guerin and other subgenus by the apex of each elytron without a spine.Entelops (Aspineoentelops) longzhouensis Hua sp. nov. (fig. 1)Female medium, elongate-ovate. Testaceo-brown, elytra violaceo-blue, the apical 1/4 of elytra covered with short and dense silver-white pubescence. Eyes, the first two and the terminal; four segments of antennae, tarsi and the apex of fore tibiae, black. Body clothed with finely dense and short griseo-white pubescence, and sparse moderately long brown hairs. The underside of the first five segments of antennae fringed.Head short, slightly broader than prothorax. Frons near quadrate, convex, puncture coarse. The antennal tubercles separated distant each other, unraised. Eyes deeply emarginate, facets-fine, the inferior lobes much shorter than the gena. Vertex convex, puncture dense. Antenna slender, slightly passed the apex of the elytra, scape thick and short, on the dorsal side with wrinkles, the third segment longest, distinctly longer than scape and the fourth, the following, segments gradually reduced. Pronotum transverse, the anterior and posterior grooves deep, the sides rounded, the disc raised, puncture coarse. Scutellum large, tongueshaped, testaceous, apex slightly emarginate. Elytra distinct broader than prothorax, parallel-sided, apex without a spine. Anterior coxal cavity closed posteriorly, meso-coxal cavity opened. Legs thick and short. Hind-femur nearly extended to the apex of abdomen. Hind tibiae having a length about two times as hind tarsi. Claws divaricate.Length 11 mm, breadth 4mm.Holotype, female, Guangxi: Longzhou, 1980-5-17, Wang Zhuyin (The type specimen is deposited in the Institute of Entomology, Zhongshan University).This new species is allied to E. nigroiarsis Breuning 1968 in Laos, but differs by the first two segments of antennae black instead of testaceous, the apical 1/4 of elytra violaceo-blue and clothed with short and dense silver-white pubescence instead of reddish-yellow, the apical spine-of elytra abcent instead of spined.