6 Transactions South African Philosophical Society. [Vvou. XI. 
D?. Clypeus with only a frontal suture .. .. .. Doleroserica. 
B*. Clypeus strongly constricted laterally, usually sharply tri- 
dentate in front. 
C*. Posterior eye-keel connected with the genal canthus 
or only very narrowly separated from it. 
D?. Clypeus with only a frontal suture. 
Antennal club of male 5-jointed ~.. .. .. .. Méicrotrochalus. 
Dt. Clypeus with a clypeal carina and a frontal 
suture.* 
Antennal club tri-jointed in both sexes .. .. Ablaberoides. 
Gren. PLEOPHYULLA, Erichs. 
Nat. Ins., iii., 1847, p. 695. 
Mentum long, gradually ampliated from the base to the anterior part 
where it is one-third broader, the angles are much rounded and the 
edge of the ligular part deeply and arcuately emarginate, the outer face 
of the ligular part, which is entirely fused with the mentum, is very 
convex in the centre and impressed on each side; labial palpi long, 
apical joint slightly rounded towards the apex outwardly, straight in- 
wardly, slightly acuminate in front, apical joint of labial palpi similar 
in shape but a little longer, maxillze short, very robust, provided with 
four strong teeth almost transversely disposed; head as broad as 
long, with the eyes large, the gene form only a short canthus and 
project very little, the clypeus is divided from the frontal part by a 
transverse impression, and is moderately narrowed laterally, almost 
straight in front, with the margin not angular in the centre, and the 
outer angles distinct but not sharp; antennz 10-jointed and longer 
than the pedicel in both sexes, third joint of pedicel one-third as 
long as the club, which is 6-jointed in the male, that of the female is 
flabellate like that of the male, but 5-jointed, the inner joint, how- 
ever, is shorter than the one following; prothorax sloping in the 
anterior part, somewhat attenuated laterally in front, very little 
sinuate behind, wider across the strongly sinuate base than across 
the apex, the outer margin has a fringe of long, seriate bristly hairs ; 
scutellum long, ogival, not very sharp at the apex ; elytra elongated, 
slightly sinuate laterally at a short distance from the shoulders, and 
covering behind the greatest part of the propygidium ; anterior coxe 
sharply conical and not very slanting; metasternum produced into a 
conspicuous aculeate process between the intermediate coxe, hind 
* This suture is carinate in 7’. @neus and in T’. tardus, 
