Scaphidium robustum, Tang, Liang, Li, Li-Zhen & He, Wen-Jia, 2014

Tang, Liang, Li, Li-Zhen & He, Wen-Jia, 2014, The genus Scaphidium Olivier in East China (Coleoptera, Staphylinidae, Scaphidiinae), ZooKeys 403, pp. 47-96 : 65-66

Scaphidium robustum sp. n. Figs 40, 41, 110-113

Type material.

Holotype.Fujian: ♂, Wuyishan City, Guadun Vil., 27°44'N, 117°37'E, alt. 1200-1500m, 28.V.2012, Peng & Dai leg. "Holotype / Scaphidium robustum / Tang & Li" [red handwritten label] (SHNU).

Paratypes.

Fujian: 1♀, same data as for the holotype (SHNU); 1♂3♀♀, ibidem, 27°44'N, 117°38'E, alt. 1100-1500m, 27.V.2012, Dai, Peng & Song leg. (1 pair in MHNG, remaining in SHNU). Chongqing: 2♂♂, Nanchuan, Jinfoshan, 29°2'N, 107°11'E, alt. 1000-1300m, 8.IV.2012, H. Huang leg. (SHNU). Guizhou: 1♂, Leishan County, Leigongshan, Lianhuaping, 15.IX.2005, Y. Liu leg. (SHNU). Guangxi: 1♂, Lingui County, Huaping N. R., Anjiangping, alt. 1400-1700m, 14.VII.2011, Z. Peng leg. (SHNU); 1♀, Jinxiu County, l6km away, alt. 900m, 31.VII.2011, Z. Peng leg. (SHNU); 1♀, Jinxiu County, Shengtangshan, alt. 1200-1400m, 25.VII.2011, Hu & Yin leg. (SHNU); 1♀, Nanning City, Damingshan, alt. 1200m, 21-23.IV.2012, Li leg. (SHNU). Yunnan: 1♂, Lushui County, Pianma, 9-11.V.2004, Yang & Liu leg. (HBUM).

Description.

BL: 5.7-6.4 mm.

Body mostly reddish-brown with ventral side, except head and sternites, slightly darker. Antennal club (Fig. 112) blackish with terminal segment entirely yellowish. Pronotum with two longitudinal black fasciae, each fascia usually extends laterally basally along the antebasal puncture row, sometimes reduced to longitudinal fascia at middle and separated small lateral spot. Elytra blackish, each with two orange fasciae. Subhumeral fascia tridentate anteriorly and bidentate posteriorly. Subapical fascia curved towards base with apicolateral part extending to apicolateral corner of elytron.

Frons finely, sparsely and very shallowly punctate, punctures of vertex coarser than those of remaining portion.

Pronotum slightly raised above elytra. Antebasal puncture row impressed, continuous in middle, with punctures coarse and regular; discal punctation similar to that of vertex, puncture intervals as broad as 1.5 to 4 puncture diameter.

Elytra with disc almost even apically, basal and sutural stria rows impressed; discal punctation similar to that of pronotum except on coarser and more densely punctuated apical portion; each elytron with one indistinct discal puncture rows consisting of slightly coarser punctures; basal stria row with punctures similar to those forming pronotal antebasal row, sutural stria puncture row relatively fine.

Prohypomera slightly uneven and smooth.

Mesepisterna finely, sparsely and very shallowly punctate.

Abdominal tergites with relatively fine and sparse punctures and very dense micropunctures. Sternite III with distinct micropunctures especially on median portions, remaining sternites with dense microsculpture consisting of micropunctures.

Legs relatively long, mesotibiae and metatibiae moderately curved.

Male. Metaventrite (Fig. 41) impressed at middle, with long and suberect pubescence. Protibiae (Fig. 113) slightly sinuate. Median lobe of aedeagus (Fig. 110) with longitudinal bands well developed, sclerotized internal sac (Fig. 111) consisting of one x-shaped apical sclerite and a complex of basal sclerites.

Distribution.

China (Fujian, Chongqing, Guizhou, Guangxi, Yunnan).

Remarks.

The new species is similar to Scaphidium biwenxuani , but can be distinguished from the latter by its larger and broader body, the smaller inner black dot near scutellum, the slender antennal club and the terminal antennal segment entirely yellowish, while in Scaphidium biwenxuani it is yellowish in apical third.

Etymology.

The Latin adjective “robustum” refers to the robust body form.