€30 Transactions South African Philosophical Society, [vol. xii. 



Gen. CHASME, Serv., 

 Encyclop. Method. 1825, x., p. 378. 



Mentum elongato-quadrate, but a little attenuate laterally close 

 to the apex, lobes of ligula somewhat broad, very diverging and 

 ciliate inwardly, last joint of labial palpi a little bent inwardly, 

 sub-cylindrical, and a little longer than the preceding one ; upper 

 lobe of maxillae horny, strongly serrate inwardly and having a thick 

 bunch of long hairs at the apex, apical joint of the maxillary palpi 

 cuiTed inwardly, sub-cylindrical, not very acuminate at tip, and 

 nearly as long as the two preceding joints ; clypeus broader than 

 long. Slab-parallel laterally with the outer angles slightly rounded ; 

 prothorax very slightly attenuate laterally in front and a little 

 ampliate on the sides, base not much arcuate ; scutellum ogival, 

 not sharp at apex ; elytra parallel, or nearly so, and with a humeral 

 callus but no distinct apical one, plane, covered with contiguous 

 bright-yellow minute scales, and reaching nearly to the apex of the 

 propygidium ; pygidium vertical in the male, a little sloping in the 

 female, densely scaly ; abdomen scaly ; legs similar in both sexes ; 

 anterior tibiae with an inner apical spur and two or one very 

 obliquely produced outer teeth ; posterior tibiae not much thickened ; 

 all the claws are double and unequal, the inner one in the antei'ior 

 legs is longer and more robust than the outer, and both of them are 

 deeply cleft ; this arrangement of the claws is reversed in the inter- 

 mediate and posterior legs, in which the outer claw is the longer and 

 more robust of the two, but while in the intermediate legs both 

 claws are cleft, in the postei'ior only the smaller and shorter claw, 

 which is nearly as long as the outer, is cleft. 



Key to the Species. 

 A-. Anterior tibiae bi-dentate outwardly. 



Elytra parallel, entirely clothed with ^,'olden yellow scales and 



short black erect hairs in both sexes decora. 



Elytra parallel, and having on each side three distinct bands of 



yellow scales and a few short black erect hairs jncuuila. 



A'. Anterior tibia; imi-dentate outwardly. 



Elytra sub-parallel, entirely clothed with yellow scales in the e? , 



paler in the ?, and hardly hairy vohilitata. 



Chasme decoka, \Viedem., 



Zoolog. Magaz., ii. 1, p. 94. 



Cuvier's R6gn. Anim. Insect., pi. xliv., fig. 8. 



Head and prothorax black, elytra and abdomen testaceous 

 brown ; head punctulate, clothed with black villose hairs except 



