Ceratocanthinae

Ballerio, Alberto, Gill, Bruce D. & Grebennikov, Vasily V., 2011, Illustrated overview and identification key to Cameroonian Ceratocanthinae beetles (Coleoptera: Scarabaeoidea: Hybosoridae) with description of four new species, Zootaxa 2892, pp. 1-24: 22

publication ID

http://doi.org/ 10.5281/zenodo.277641

persistent identifier

http://treatment.plazi.org/id/03A1C115-FFD7-FFA3-FF3F-FBF8D983F85B

treatment provided by

Plazi

scientific name

Ceratocanthinae
status

 

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 View FIGURE 4 )................. Baloghianestes oribatidiformis   n. sp.

- Elytral humeral area without tubercle or tubercle-like process ( Fig. 6 View FIGURE 6 ).................. Baloghianestes korupensis   n. sp.

6 Head with vertex having irregular raised longitudinal process. Setae clavate ( Fig. 5 View FIGURE 5 )....... Baloghianestes lissoubai Paulian  

- Head without raised, longitudinal process. Setae simple ( Fig. 3 View FIGURE 3 ).......................... Baloghianestes anceps   n. sp.

7 Dorsal surface of elytra and pronotum with several distinct tubercles ( Fig. 8 View FIGURE 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 View FIGURE 18 )............................ Petrovitzostes guineensis (Petrovitz)  

- Dorsal surface lacking setation (low magnification: 20 X)............................ Philharmostes badius (Petrovitz)  

9 Length greater than 8 mm; genal canthus not reaching occipital area ( Figs. 9–11 View FIGURE 9 View FIGURE 10 View FIGURE 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 View FIGURE 16 )....................................... Pseudopterorthochaetes endroedyi (Paulian)  

- Elytra with large, horseshoe-shaped, shallow, transverse punctures ( Fig. 15 View FIGURE 15 )......... Melanophilharmostes demirei Paulian  

12 Surface of elytra and pronotum with fine, dense, simple punctures between fine, horseshoe-shaped punctures ( Fig. 17 View FIGURE 17 )............................................................................ Melanophilharmostes zicsii (Paulian)  

- Surface of elytra and pronotum smooth between large, shallow, ocellate punctures.. Melanophilharmostes burgeoni (Paulian)