Micrambe yunnanensis, Esser, 2017

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

Micrambe yunnanensis nov.sp.

T y p e m a t e r i a l: Holotype 3: " China (Yunnan), Baoshan Pref., Gaoligong Shan , 33km SE Tengchong, 24°51’22’’N / 98°45’36’’E, 2100-2200 m (prim. decid. forest, brook bank, litter, moos sifted), 31.V.2007 D. W. Wrase (14B)" [ NME].

Paratypes: 13, with the same data as holotype [ NME] ; 1♀ " China: Yunnan [CH 07-15], Baoshan Pref., Gaoligong Shan, 29 km ESE Tenchong, 24°55’37’’N, 98°45’09’’E, 2350 m, dev. Decid. Forest , litter, wood, fungi sifted, 1.VI.2007 M. Schülke " [ SMNS]; 1♀ " China, N-Yunnan, Dali Bai Nat. Aut. Pref., Diancang Shan, 3 km W Dali Old Town / pine for. at Cloud Road, 2650-2750 m, 30.8.200 3, leg. Schülke " [cES] ; 13, 1♀ " China, N-Yunnan [C03-19A], Dali Bai Nt. Aut. Pref., Diancang Shan, 3 km w Dali Old Town, pine forest at Cloud Road , right upper chairlift station, 25°41.1’N, 100°06.8’E, 2650-2750m / [C03-19A] pine needles, moss (dry) in ditches, mushrooms, 30.VIII.2003, leg. M. Schülke " [cES] ; 13 " China, N-Yunnan [C03-19B], Dali Bai Nt. Aut. Pref., Diancang Shan, 3 km w Dali Old Town, pine forest at Cloud Road , right upper chairlift station, 25°41.1’N, 100°06.8’E, 2650-2750m / C03-19B] pine needles, moss (dry) in ditches, mushrooms, traps, 1.IX.2003, leg. M. Schülke " [cES] .

E t y m o l o g y: The specific epithet points on the province Yunnan 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. 3 ). Eyes conical. Pronotum 1,45 times broader than long, broadest between the anterior angles, strongly punctate, margin with strong teeth, surface very convex, sloping towards the margin, anterior callosities not 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 but unequal, segment 8 nearly moniliform, segment 9 and 10 conic and nearly broad as long, segment 11 oval, longer than broad, conical. Parameres as in fig. 6.

C o m m e n t Distinguished from M. bimaculata and M. sinensis by its strong punctuation (pronotum, elytra), Parameres triangular (fig. 7). Very similar to M. zhejiangensis , distinguished by the non-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 Yunnan.

Figures

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