1904.] Catalogue of the Coleoptera of South Africa. 37 



Key to the Species. 



Anterior part of clypeus declivous ; prothorax regularly ampliated 



laterally in the centre rotundicollis. 



Anterior part of clypeus strongly declivous ; prothorax plainly at- 

 tenuated laterally in the anterior part, not in the posterior . . . . clypeata. 



Allokotarsa rotundicollis, n. spec. 



Pale testaceous, sometimes light brick-red, the head is usually 

 darker than the body and very often black ; club of antennae 

 flavous ; clypeus strongly narrowed laterally in the anterior part 

 for about one-third of the length, anterior margin strongly reflexed r 

 tri-dentate, but with the median tooth sharper than the outer angles, 

 the nearly median keel is slightly arcuate and runs parallel to the 

 frontal suture which is somewhat shallow and moderately arcuate, 

 the genae are long and are formed by a prolongation of the lateral 

 margins, both head and clypeus are moderately deeply punctate ; 

 prothorax plainly rounded laterally in the centre and equally nar- 

 rowed in the anterior and posterior parts, slightly convex, finely and 

 somewhat closely punctate and having a lateral fringe of long setae ; 

 scutellum acuminate, punctulate ; elytra sub-parallel, or very slightly 

 ampliated behind in the female, punctulato-striate, with the intervals 

 very little raised, and with deep, irregular punctures, the outer 

 margins have a fringe of moderately short bristles ; pygidium and 

 under side punctulate. 



Length 5-6 mm. ; width 3-3J mm. 



Hah. Damaraland (Walfish Bay) ; Southern Rhodesia (Enkel- 

 doorn, Sebakwe) ; Cape Colony (Carnarvon). 



Allokotarsa clypeata, n. spec. 



Very closely allied to the preceding species ; the colour is the 

 same, but the head is not infuscate ; the clypeus is more declivous 

 in the anterior part, the lateral angles of the anterior margin are as 

 sharp as the median aculeate part, which is not the case in 

 A. rotundicollis, and the prothorax, which is also more closely 

 punctured, is slightly yet plainly attenuate laterally in the anterior, 

 but not at all in the posterior part the basal angles of which are 

 quite distinct, although not sharp, while in A. rotundicollis the basal 

 angles are conspicuously broadly rounded ; the shape and sculpture 

 of the elytra are similar in both species. 



Length 5J-6J mm. ; width 3-3J mm. 



Hab. Damaraland ; Ovampoland, 



