Calyptopsis, Solier, 1835

Chigray, Svetlana, Nabozhenko, Maxim, Keskin, Bekir & Abdurakhmanov, Gayirbeg, 2018, Taxonomic review of the genus Calyptopsis of Turkey and adjacent areas (Coleoptera: Tenebrionidae: Tentyriini), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 58 (2), pp. 331-346 : 345

Key to species of the genus Calyptopsis of Turkey and Western Transcaucasia

1(2) Mesoventrite with transverse and oblique long coarse wrinkles. Antennae widening from base to apex. Anterior angles of pronotum acute, strongly projecting. Scutellum not reaching margin of elytral bead. Protibiae with depression along entire length on ventral side. ............ C. egecemi sp. nov.

2(1) Mesoventrite with longitudinal long or short bracket-shaped or bean-shaped foveae. Antennae thick in entire length. Scutellum reaching level of margin of elytral bead or longer. Protibiae without depression on ventral side.

3(4) Metaventrite basally and abdominal ventrites 1–3 medially with sparse distinct microgranules. ......... ..................................................... C. fouquei sp. nov.

4(3) Metaventrite basally smooth, with very fine and sparse punctation, abdominal ventrites with fine punctation in the middle or smooth.

5(6) Anterior margin of head sharply and completely separated from the remaining surface by elevated bead. ................................................ C. ottoi sp. nov.

6(5) Anterior margin of head not separated from the remaining surface, sometimes with weak smooth bead laterally.

7(8) Anterior margin of head rounded, without vertical margin or tooth in the middle. ................................. ...................................... C. lineimargo Reitter, 1897

8(7) Anterior margin of head with vertical margin and sometimes with weak, wide tooth in the middle.

9(10) Mesoventrite with bean-shaped wide foveae. ......... .............................. C. solieri Reiche & Saulcy, 1857

10(9) Mesoventrite with bracket-shaped narrow foveae.

11(12) Body slender, elongate. Pronotum completely covered by very dense and coarse punctation (puncture diameter subequal or more than interpuncture space); punctures elongate on sides. ....... ......................... C. armeniaca Baudi di Selve, 1874

12(11) Body robust, oval. Pronotum with sparse and fine or moderately dense punctation (puncture diameter less than interpuncture space), sometimes with coarser and denser punctation only on sides.

13(18) Mesoventrite with long almost straight sparse foveae.

12(17) Protibiae fossorial, flattened, short and wide, 2.53× as long as wide. Punctation of pronotum sparse and fine. Punctation of elytra very sparse and fine, almost not visible. Bases of elytra and pronotum subequal or elytral base not more than 1.06× as wide as base of pronotum. ........................................ ................................. C. capnisiformis Reitter, 1903

15(16) Prosternal process laminar, strongly protruding and acute in lateral view. Base of pronotum straight. Elytra elliptical, with more rounded lateral margins. ................ C. capnisiformis volcanica subsp. nov.

16(15) Prosternal process rounded, weakly protruded, laterally rectangular. Base of pronotum bisinuate. Elytra trapezoidal, with weakly rounded lateral margins. ....................................................................... ........ C. capnisiformis capnisiformis Reitter, 1903

17(12) Protibiae not fossorial, not flattened, 3.3× as long as wide. Punctation of pronotum and elytra dense, moderately coarse. Elytral base 1.1× as wide as base of pronotum. ....... C. escherichi Reitter, 1900

18(13) Mesoventrite with short rounded dense foveae.

19(20) Body shiny. Foveae on mesoventrite connected in long longitudinal chains of brackets. ....................... ..................................................... C. kaszabi sp. nov.

20(19) Body dull, elytra offen matt. Foveae on mesoventrite are located in the form of shingles.

21(22) Pronotum large, almost of the same width as elytra, with subequal length and width, 1.5× shorter than elytra. ................. C. caucasica ( Kraatz, 1865)

22(21) Pronotum not large, elytra 1.15–1.23× as wide as pronotum, 1.24–1.37× as wide as long, 2.0–2.1× shorter than elytra.

23(24) Pronotum with coarse and dense punctation, especially on sides. Elytra narrowly distinctly depressed along suture in anterior third. .................... ........... C. pulchella pulchella ( Faldermann, 1837)

24(23) Pronotum with regular sparse and fine punctation. Elytra not depressed along suture. ........................... ..................................... C. emarginata Reitter, 1889