1896.] of the Coleoptera of South Africa. 5/37 



antennae fuscous ; head smooth, frontal sulci long, straight, diagonal ; 

 prothorax as broad as long, very slightly rounded laterally in the 

 anterior part, and much more so behind, where it is subsinuate, 

 posterior angle sharp, but not projecting, disk smooth, dorsal grooves 

 deep ; elytra a little broader at the base than the prothorax, parallel, 

 depressed, striate, the striae deeply punctured, and the intervals 

 smooth, narrow, and almost carinate. Length 6J-7 mm. ; width 

 2f-3 mm. 



Hab. Natal (D'Urban). 



Drimostoma amaroide, Bohem., 

 Insect. Calfr., i., p. 177. 



Black, shining; palpi, labrum, the three basal joints of antennae 

 and the legs reddish, the other joints of the antennae subfiavescent ; 

 head smooth, the frontal sulci diagonal ; prothorax a little broader 

 than long, rounded laterally in the anterior part, straight, and not 

 sinuate from before the median part to the base, where it is, however, 

 not quite so broad as at the apex, posterior angle sharp but not 

 projecting, disk smooth, median groove reaching from the base to a 

 little short of the apex, lateral grooves deep ; elytra a little broader 

 at the base than the prothorax, subparallel, but with the shoulders a 

 little more rounded than in the two preceding species, narrowly 

 striate, with the striae faintly punctured and the intervals smooth 

 and a little convex in the median part. Length 6 mm. ; width 3 mm. 



Hab. Caffraria, teste Boheman, Natal (Isipongo). 



Gen. EXOCUS. 



Mentum of Drimostoma ; ligula and paraglossae similar ; maxillae 

 arcuate at tip, very sharp, ciliate without any dentiform bristles ; 

 palpi also similar ; joints of antennae from fifth to last a little 

 elongato-quadrate ; labrum long, subtruncate ; mandibles projecting 

 much beyond the labrum, falcate, and sharp at tip ; head depressed 

 on each side of the frontal part, but without any groove ; eyes large ; 

 prothorax rounded laterally in the anterior part and a little narrowed 

 behind ; elytra oblong, striate ; legs moderately long, intermediate 

 and posterior tibiae grooved inwardly, anterior ones not much dilated 

 and without any external spines at apex ; anterior tarsi of male very 

 little dilated, the three basal joints squamulose underneath, the 

 intermediate and posterior tarsi slightly grooved on the upper part. 

 Distinguished from Drimostoma by the absence of terminal spines 

 on the anterior tibiae ; the head also has no frontal groove. 



ExOCUS FERRUGINEUS. 



Ferruginous red, shining ; head with a broad frontal aciculate 



