Scaphidium bayibini, 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 : 66-67

Scaphidium bayibini sp. n. Figs 42, 43, 114-117

Type material.

Holotype.Anhui: ♂, Yuexi County, Yaoluoping N. R., Ximianzi Vil., 30°58'55"N, 116°3'49"E, alt. 1050m, 21.VI.2013, Dai & Peng leg. "Holotype / Scaphidum bayibini / Tang & Li" [red handwritten label] (SHNU).

Paratypes.

Anhui: 1♀, same data as for the holotype (SHNU); 1♂, Yuexi County, Yaoluoping, Xiaoqiling, 18-19.VII.2007, Ba, Lang & Wang leg. (HBUM); 1♀, Yuexi County, Yaoluoping Vil., 30. VII– 4.VIII.2007, Ba, Lang & Wang leg. (HBUM).

Description.

BL: 6.8-7.5 mm.

Body black with antennal segments I–VI and tarsi brownish. Antennal club (Fig. 116) blackish with terminal segment slightly lighter in apical 1/3. Elytra each with two reddish fasciae. Basal fascia large, touching basal and lateral margins and suture of elytron, bidentate posteriorly. Two black dots entirely sealed in basal fascia with inner black dot smaller and separated from basal stria. Subapical fascia tridentate anteriorly and bidentate posteriorly.

Frons coarsely and densely punctate, punctures on vertex denser than those on remaining surface.

Pronotum slightly raised above elytra. Antebasal puncture row impressed, more or less interrupted at middle, with punctures coarse and somewhat elongate; discal punctation coarser than that on vertex, puncture intervals mostly as broad as half puncture diameters.

Elytra with disc slightly impressed apically, basal and sutural stria rows impressed; discal punctation slightly sparser than that of pronotum except that on basal fascia which is distinctly finer and sparser; basal stria row with punctures similar to those forming pronotal antebasal row, sutural stria puncture row relatively fine.

Prohypomera slightly uneven, with relatively fine and very shallow punctures, especially on outer half.

Mesepisterna finely, sparsely and shallowly punctate.

Abdominal tergites with relatively coarse and dense punctures and distinct microsculpture consisting of micropunctures. Sternites with fine and shallow punctures and relatively faint microsculpture consisting of micropunctures.

Legs moderately long, mesotibiae and metatibiae moderately curved.

Male. Metaventrite (Fig. 43) impressed at middle, with long and suberect pubescence. Profemur (Fig. 117) with ventral side moderately expanded, forming two ridges. Protibia (Fig. 117) gradually widened starting from basal 1/3, forming blunt protuberance at widest point, narrowed toward apex. Median lobe of aedeagus (Fig. 114) with distinct longitudinal bands, sclerotized internal sac (Fig. 115) consisting of two apical longitudinal sclerotized rods and two basal transverse sclerotized rods.

Distribution.

China (Anhui).

Remarks.

The new species is extremely similar to Scaphidium klapperichi and can be distinguished by the broader antennal club, the elytra with the inner black dot of basal fascia separated from basal stria, and the distinctive shape of the aedeagal sclerites.

Etymology.

This species is named in honor of Mr. Yi-Bin Ba, who firstly collected specimens of the new species.