Illustrated overview and identification key to Cameroonian Ceratocanthinae beetles (Coleoptera: Scarabaeoidea: Hybosoridae) with description of four new species Author Ballerio, Alberto Author Gill, Bruce D. Author Grebennikov, Vasily V. text Zootaxa 2011 2892 1 24 journal article 46828 10.5281/zenodo.277641 e945637f-1e4a-433e-b949-8647c3fb20ee 1175-5326 277641 Key to the described species of Cameroonian Ceratocanthinae 1 Protibiae broadly arcuate, outer margins at most finely serrate with weak tooth apically, no distinct teeth visible.......... 2 - Protibiae straight, with one or more distinct teeth on outer margin............................................... 9 2 Head with strong, large, dorsal trichome................................... Callophilharmostes fleutiauxi (Paulian) - Head without strong, large, dorsal trichome, rarely with short setae............................................... 3 3 Genal canthus indistinct, no dorsal ocular area; small, flightless species (genus Baloghianestes )...................... 4 - Genal canthus distinct with dorsal ocular area; winged species.................................................. 7 4 Pseudoepipleura delimited by sharp carina, which is sometimes interrupted at middle; with pseudoepipleura abruptly folded inwards............................................................................................ 5 - Pseudoepipleura not delimited by sharp carina or, at most, by a hint of a sharp carina present near humeral area; with pseu- doepipleura almost indistinct............................................................................ 6 5 Elytral humeral area with a distinct, tubercle-like process ( Fig. 4 )................. Baloghianestes oribatidiformis n. sp. - Elytral humeral area without tubercle or tubercle-like process ( Fig. 6 ).................. Baloghianestes korupensis n. sp. 6 Head with vertex having irregular raised longitudinal process. Setae clavate ( Fig. 5 )....... Baloghianestes lissoubai Paulian - Head without raised, longitudinal process. Setae simple ( Fig. 3 ).......................... Baloghianestes anceps n. sp. 7 Dorsal surface of elytra and pronotum with several distinct tubercles ( Fig. 8 )........ Carinophilharmostes vadoni (Paulian) - Dorsal surface of elytra and pronotum lacking carinae or tubercles.............................................. 8 8 Dorsal surface covered by short, thick setae ( Fig. 18 )............................ Petrovitzostes guineensis (Petrovitz) - Dorsal surface lacking setation (low magnification: 20X )............................ Philharmostes badius (Petrovitz) 9 Length greater than 8 mm ; genal canthus not reaching occipital area ( Figs. 9–11 )......... Congomostes hintelmanni n. sp. - Length less than 8 mm ; genal canthus reaching occipital area................................................. 10 10 Pseudoepipleura delimited at least partly by cariniform process................................................ 12 - Pseudoepipleura not delimited by cariniform process........................................................ 11 11 Elytra with irregular rows of small, shallow, comma-shaped punctures arranged transversely, basally and longitudinally along median and distal third ( Fig. 16 )....................................... Pseudopterorthochaetes endroedyi (Paulian) - Elytra with large, horseshoe-shaped, shallow, transverse punctures ( Fig. 15 )......... Melanophilharmostes demirei Paulian 12 Surface of elytra and pronotum with fine, dense, simple punctures between fine, horseshoe-shaped punctures ( Fig. 17 )............................................................................ Melanophilharmostes zicsii (Paulian) - Surface of elytra and pronotum smooth between large, shallow, ocellate punctures.. Melanophilharmostes burgeoni (Paulian)