38 Transactions South African Philosophical Society, [vol. xiii. 



DOLEROTAKSA, n. gen. 



This genus is allied to Alogistotarsa, the buccal organs are the 

 same, and also the general appearance; the clypeus, however, is 

 deeply incised laterally and more constricted there at a short 

 distance from the apex, the anterior margin being quite narrow, 

 reflexed, arcuately emarginate, not angular in the centre and with 

 the angles acute instead of a keel, there is a frontal suture ; the 

 anterior tibiae are uni-dentate, the non-apical tooth being hardly 

 distinct and represented by a slight sinuation only, and there is no 

 inner apical spur, the tarsal joints are long, straight inwardly, 

 rounded outwardly towards the apex, except the apical one, and 

 with one or two slender bristles set past the median part on the 

 outer side only, not near the apex ; in the male the outer claw of the 

 anterior tibiae is normal, and the lower tooth wider and stronger than 

 the upper, the inner is broadly dilated at the base and bent at right 

 angles somewhat in the manner of Camenta, and slightly bifid at the 

 tip, the other claws are strongly divergent, and equally cleft under- 

 neath ; abdomen compressed laterally ; antennae 10-jointed, club of 

 male as long as the head. 



This genus is a form of transition between Idceserica,, which has a 

 moderately constricted clypeus, and those in which the clypeus is 

 strongly constricted, and tri-dentate in front. In Idceserica the 

 anterior tarsal joints are not unlike those of Dolerotarsa, but they 

 are not fused, and the shape of the anterior claws of the male is 

 different. 



Dolerotarsa emendatrix, n. spec. 



Testaceous-red, with the elytra testaceous yellow, antennae flavous; 

 head deeply and slightly roughly punctate from the apex of the 

 clypeus to the basal part ; clypeus not tri-dentate in front, strongly 

 constricted laterally at a short distance from the apex the margin of 

 which is slightly arcuate with the outer angles sharp, the frontal 

 suture is only moderately deep and the genae strong and oblique ; 

 antennal club of male nearly as long as the head ; prothorax broader 

 at the base than at the apex, hardly sinuate laterally behind, closely 

 punctate ; scutellum elongate, ogival ; elytra elongated, sub-parallel, 

 barely covering the anterior part of the propygidium, plainly striate 

 with the intervals raised and tectiform in the dorsal part, very 

 numerously punctate, glabrous ; abdominal segments with a double 

 row of punctures ; coxae as deeply punctate as the metasternum, and 

 plainly concave ; pectus glabrous ; anterior tibiae with only the 

 apical tooth well defined, the second one being reduced to a mere 



