Cryptophagus kielhorni, Esser & R, 2021

Esser, Jens & R, Afrotropical, 2021, Cryptophagus kielhorni nov. sp. from Ethiopia with remarks on taxonymy and distribution of further species of Cryptophagus HERBST, 1792 in Africa (Coleoptera, Cryptophagidae), Linzer biologische Beiträge 53 (1), pp. 55-59 : 56

Cryptophagus kielhorni nov.sp. ( figs 1 , 3 )

T y p e m a t e r i a l: Holotypus ♁: " Ethiopia, Amhara, W-slope Mt. Choke , 10°42'17''N, 37°50'29''E, 3700-3900 m, 25.II.2019, leg. D. Hauth, J. Schmidt, M. Yeshitla, Yitbarek WW " [ MNE] . Paratypes: 1♁ with the same data as the holotype [cES] ; 1♁, 1♀ " Ethiopia, Amhara, Mt. Choke crater valley, 10°41'14''N, 37°50'07''E, 24.II.2019, 3700-3800 m, leg. D. Hauth, J. Schmidt, M. Yeshitla, Yibarek " [ NME] ; 2♁♁ " Gojjan Prov.: Mt. Choke , 3200/ 3500 m, 15/ 18.XII.1972 / Coll. Mus. Trevuren, Ethiopie, R. O.S. Clarke " [ RMCA, cES] .

E t y m o l o g y: Named in honour of my friend Karl-Hinrich Kielhorn for many years of amusing field trips and discussing many interesting phenomenons in entomology.

D e s c r i p t i o n: Male, 1.9 mm, reddish-brown, membranous wings absent, legs and antennae slender. Shiny, with punctuation moderately strong and sparse on pronotum, sparser on elytra (basal third). Covered with uniform pale pubescence, hairs decumbent and sparse. Pronotum with a few long hairs projecting the side margin partly.

Head without any features, eyes medium-sized with just a few ommatidia. Punctuation as on pronotum, somewhat denser and finer.

Pronotum with prominent anterior callosities, short, forming a hook. Distance between anterior callosity and median (lateral) teeth 1.5x longer as callosity. Surface of callosities not visible from above. Median tooth small and indistinct, located in the middle of the side margin. Side margin poorly rounded behind the tooth, narrowed distally, with a few small teeth. Side margin nearly straight and smooth between median teeth. Surface convex, punctuatiom moderately strong, distance between wider than the diameter. Pronotum poorly transverse (1.25 x broader than long), broadest in the middle.

Elytra elongated; slightly rounded, humeral callus indistinct. Pubescence short, sparse, and decumbent.

Antennae moderately slender, 11-segmented including a 3-segmented club. Segment 1 nearly round, broader than 2, segment 2 somewhat smaller and elongated, segment 3 longer: 1.5x as long as broad. Segments 4 to 8 more (4) or less (5, 6, 7, 8) longer than broad. Segment 9 and 10 transverse, 11 as long as broad and strong asymmetrical. Tarsal formula 5-5-4 (females with 5-5-5). Parameres shown in fig. 3.

C o m m e n t: Similar to Cryptophagus wachteli ESSER, 2013 ( fig. 2 ) but easily distinguishable by its less transverse pronotum, further by short and decumbent pubescence on elytra. Parameres elongated ( fig. 4 ).

D i s t r i b u t i o n: Currently known only from Mt. Choke, Amhara province of Ethiopia.

Figures

Figs 1-2: Habitus of Cryptophagus sp. (1) C. kielhorni nov.sp., holotype; (2) C. wachteli ESSER, 2013, holotype.

Figs 3-4: Parameres of Cryptophagus sp. (3) C. kielhorni nov.sp., holotype; (4) C. wachteli ESSER, 2013, holotype.