370 Transactions South African Philosophical Society, [vol. xii. 



D^". Apical spur curving inwardly in the male. 



Abdominal segments not free Harmon aster. 



Abdominal segments free Tmclicstes. 



D'. No apical spur in the male. 



Clypeus deeply incised Coi^tochirm. 



C. Anterior tibise transversely truncate at tip. 

 a^. Elytra with nine strife on each side. 



Anterior tibiae inflated or laminate internally, 

 basal joint of intermediate and posterior tarsi 

 spinose or contorted Drcpanocanthus. 



Anterior tibiae and basal joint of intermediate and 



posterior tarsi simple Liparochirusi. 



a\ Elytra with six strise on each side. 



Body very depressed ; tibite and tarsi simple . . LorditomaiiR. 



B-. Prothorax grooved or costate. 



Anterior tibise very broadly laminate inwardly ; prothorax 



with a broad longitudinal furrow having rounded walls Sybax. 



Anterior tibiae simple ; prothorax tri-costate Notocaiilus. 



B'. Prothorax covered with transverse folds. 



Clypeus deeply emarginate, the emargination very 

 arcuate and with the angles sharp ; anterior tibife as in 

 Aphodius Bliysscmus. 



A'. Lobe of maxillae dentate inwardly. 

 B-. Anterior tibiae tri-dentate. 



Prothorax with transverse folds ; basal joint of posterior 



tarsi short, dilated rsammodius. 



Prothorax punctulate and with a longitudinal groove ; 



basal joint of posterior tarsi PlciiropJiorii.i. 



B'. Anterior tibiae not dentate outwardly ; prothorax very 

 gibbose, deeply grooved behind, and having there a deep 

 excavation on each side Corytlwdcriia. 



HAEMODACTYLUS, n. gen. 



Buccal part and general facies of Aphodius, from which it differs 

 by the shape of the anterior tibiae of the male, which instead of 



\ 



