Micrambe schuelkei, Esser, 2017

Esser, Jens, 2017, On Micrambe THOMSON, 1863 of China (Coleoptera: Cryptophagidae), Linzer biologische Beiträge 49 (1), pp. 387-394 : 388-389

Micrambe schuelkei nov.sp.

T y p e m a t e r i a l: Holotype 3: " China, mountain W Gejiu, 23°24’13’’N, 103°07’28’’E, 1990 m, misted forest, litter and various debris sifted, 25.VIII.2014, leg. M. Schülke [CH14-20b]" [ ZMB].

Paratypes: 13, 1♀ " China, mountain W Gejiu, 23°24’13’’N, 103°07’28’’E, 1990 m, misted forest, litter and various debris sifted, 24.VIII.2014, leg. M. Schülke [CH14-20b]" [ ZMB]; 1♀ " China, mountain W Gejiu, 23°24’13’’N, 103°07’28’’E, 1990 m, misted forest, litter and various debris sifted, 23.VIII.2014, leg. M. Schülke [CH14-20b]" [ ZMB]; 433, 3♀♀ " China, Yunnan, E Kunming, Xiaobailong Forest Park, 24°55’43’’N, 103°05’22’’E, 2110 m, secondary pine forest, pine litter and litter at trail margin sifted, 10.VIII.2014, Schülke [CH14-03]" [ ZMB, cES]; 333, 2♀♀ " China, Yunnan, NE Kunming, 25°09’07’’N, 102°53’46’’E, 2280 m, secondary pine forest, with scattered old alder, litter sifted, 11.VIII.2014, Schülke [CH14-04]" [ ZMB, cES]; 233 " China, Yunnan, mt. W Xundian, 25°34’58’’N, 103°08’42’’E, 2300 m, mixed forest with alder, pine, shrub undergrowth, litter, twigs and roots of herbs sifted, 15.VIII.2014, Schülke [CH14-09]" [ ZMB, cES]; 1♀ " China, Yunnan [CH07-08], Dali Bai Auton. Pref., Diancang Shan 43 km NW Dali, 3078 m, 25°59’35’’N, 99°52’06’’ E, W pass, Rhodod., oaks, bamboo, sifted, 29.V.2007, M. Schülke " [ ZMB] .

E t y m o l o g y: The specific epithet points on Michael Schülke (Berlin), who found the type material and a huge amount of species from various regions.

D e s c r i p t i o n: Male, wings fully developed, 1,9 mm. Reddish-brown, elytra with an undulated, well-defined black spot in the medium part and a little black spot on the apex of each elytron ( fig. 9 ). 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 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 3-5 longer than broad but unequal, segments 6-7 sligthly longer as broad, 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. 10.

C o m m e n t: Most of the specimens were distinguished by the typical coloration with the undulated spot on each elytron (see above). Two paratypes are uniformly reddish-

brown without any black coloration on the elytra. They are very similar to the following species and only distinguishable in studying the parameres.

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

Figures

Fig. 9-10: (9) M. schuelkei nov.sp., paratype; (10) M. schuelkei nov.sp., parameres; Fig. 11: Micrambe micramboides (REITTER, 1874) from Japan, paratype.