1904. ] Catalogue of the Coleoptera of South Africa. 
Bt. Clypeus strongly constricted laterally, tri-dentate in front. 
C?. Body elongated, sub-parallel, very little convex. 
Antenne 10-jointed. 
E?. Head with a clypeal keel and a frontal suture. 
Et. 
OF 
a. 
. Anterior tibix tri-dentate. 
. Clypeal keel triangular. 
Clypeus with the outer angles rounded, basal 
joint of hind tarsi very short .. 
Clypeal keel straight, set close to the frontal 
suture. 
Anterior part of clypeus divided into two by 
a longitudinal keel. 
. Anterior tibiz without inner spur in the male. 
Joints of anterior tarsi of male broadly dilated 
transversely, and gradually tapering towards 
the apex, claws very long and slender .. 
. Anterior tibiz with an inner spur in the male. 
Anterior tarsi and claws of male normal 
Anterior tibiz bi-dentate outwardly. 
Joints of anterior tarsi of male fused, sub- 
parallel, sub-aculeate inwardly, last joint 
slightly wider, sub-parallel 
Joints of anterior tarsi of male elongated, 
slender, cylindrical, and fused together .. 
Head with only a frontal suture. 
Anterior tibie uni-dentate, without inner spur in 
the male. 
Anterior tarsi of male long, partly fused, straight 
in 
wardly, slightly rounded at tip outwardly 
Ct. Body ampliato-ovate or sub-spherical, convex or very 
convex. 
Clypeus with only a sharp frontalkeel .. .. .. 
At, Eyes divided in front by the genal canthus and having also 
a posterior keel. 
B?. Clypeus not constricted laterally nor sharply tri-dentate 
in front. 
C?. Posterior eye-keel broadly separated from the genal 
canthus. 
Camentoserica. 
Allokotarsa. 
? Mesoserica. 
Arraphytarsa. 
Alogistotarsa. 
Dolerotarsa. 
Trochalus. 
