Micrambe zhejiangensis, Esser, 2017

Esser, Jens, 2017, On Micrambe THOMSON, 1863 of China (Coleoptera: Cryptophagidae), Linzer biologische Beiträge 49 (1), pp. 387-394 : 389-391

Micrambe zhejiangensis nov.sp.

T y p e m a t e r i a l: Holotype 3: " China: Zhejiang (CH07-36), West Tianmu shan N. R., way to peak of immortals, 30°20’34’’N / 119°25’51’’E, 110-1200 m, prim. mixed forest, litter, moos sifted, 15.VI.2007. M. Schülke " [ ZMB].

Paratypes: 43, 7♀ with the same data as the holotype [ZMB, cES].

E t y m o l o g y: The specific epithet points on the province Zhejiang in China, where the type material were found.

D e s c r i p t i o n: Male, wings fully developed, 1,9 mm. Reddish-brown, elytra with a rounded, not well-defined black spot in the medium part and a little black spot on the apex of each elytron ( fig. 4 ). Eyes conical. Pronotum 1,5 times broader than long, broadest between the anterior angles, strongly punctate, margin with strong teeth, surface very convex, sloping towards the margin, anterior callosities strongly prominent, margin nearly straight. Elytra stout, hairs uniform semi-erected, shoulders well developed, strongly punctate on the anterior part, less to the posterior part. Legs slender, tarsi with five segments, posterior tarsi with four segments (only in male), anterior tarsi segments 1-4 moderately widened (only in male). Antennae slender, club well developed, segments 3-7 longer than broad and equal, segment 8 shorter but not moniliform, segment 9 and 10 strong conical, segment 11 long as broad, rounded and conical. Parameres as in fig. 8.

C o m m e n t Distinguished from M. bimaculata and M. sinensis by its strong punctuation (pronotum, elytra), Parameres strongly triangular (fig. 8). Very similar to M. yunnanensis , distinguished by the prominent callosity and the parameres. Also similar to M. micramboides (REITTER, 1874) , which is strongly stout, with a pronotum broader and with rounded margins (fig. 11). Distinguished from M. schuelkei nov.sp. by its rounded, not well-defined spot.

D i s t r i b u t i o n: So far known in China, province Zhejiang.

Figs 1-2: (1) Micrambe bimaculata (PANZER, 1798) , Ukraine, male; (2) Micrambe sinensis GROUVELLE, 1910 stat. rev. from China (Shanxi), male.

Figs 5-8: Parameres of (5) Micrambe bimaculata (PANZER, 1798) ; (6) M. sinensis GROUVELLE, 1910 ; (7) M. yunnanensis nov.sp.; (8) M. zhejiangensis nov.sp.

Figures

Figs 3-4: (3) Micrambe yunnanensis nov.sp. from China (Yunnan), male; (4) Micrambe zhejiangensis nov.sp. from China (Zhejiang), male.