1904.] Catalogue of the Colcoptcra of South Africa. 107 



Oocamenta (Pseudocamenta) transvaalia, n. spec. 



Black, with the abdomen red, piceous-red, or testaceous-red, the 

 elytra, however, are often testaceous and more or less broadly infus- 

 cate laterally ; the antennae are flavous in both sexes, the 10-jointed 

 ones of the male have a long 7-jointed club the inner joint of which 

 is- slightly shorter than the one following, the 9-jointed antennae of 

 the female have a 4-jointed, somewhat elongated club the joints of 

 which are of equal length; the head and clypeus have the same 

 shape as C. rufiventris, the genae are equally produced, the emargi- 

 nation of the anterior part, the keel, and the suture are identical, the 

 body, however, is much less ampliato -ovate, although distinctly 

 convex in the hind part of the elytra, the punctures are deeper and 

 very plain all over, and the costules of the elytra are visible. 



Length 6^ mm. ; width 3J— 3f mm. 



Hah. Transvaal (Johannesburg, Pretoria, Lydenburg). 



Gen. DIPLOTEOPIS, Bohem., 



Insect. Caffr., ii., p. 104. 



Mentum plainly ampliated but not deeply constricted laterally 

 towards the anterior part the angles of which are obliquely truncate 

 but not angular, and the anterior margin plainly sinuate, inner face 

 very convex and not visibly impressed in the anterior part, last joint 

 of labial palpi ovato-acuminate ; maxillae and palpi as in Ablabera 

 and G amenta, but the former have five teeth only ; clypeus semi- 

 circular but incised laterally and deeply notched in the anterior part 

 with the margins sharp and reflexed, it has an anterior arcuate ridge 

 in the anterior part and another one at the junction with the fore- 

 head, and the genae are greatly developed ; the antennae are 10- 

 jointed, and in the two species known the antennal club is long and 

 7-jointed ; the general facies is that of C amenta t the claws also being 

 alike, but it is differentiated by having two clypeal keels instead of a- 

 clypeal keel and a frontal suture. 



Key to the Species. 



Clypeus deeply emarginate in- the anterior part, prothorax and elytra 

 fringed with dense hairs ; inner joint of club of male as long as the one 

 following , . • nigrina. 



Clypeus deeply and narrowly notched in the anterior part ; prothorax 

 and elytra with seriate, remote hairs ; inner joint of club of male one- 

 fourth the length of the one following castanea.. 



