40 Transactions South African Philosophical Society, [vol. xin. 



the male differs greatly from that of Arraphytarsa or Allokotarsa ; 

 the joints are cylindrical, fused without traces of suture, the place 

 of the latter is, however, indicated by one or two inner and outer 

 bristles, the last joint is slightly dilated at the tip, the inner claw is 

 short, double, the inner tooth much thicker than the outer, the outer 

 claw is much longer, not deeply cleft at the tip, and the inner lobe 

 is wider than the outer; intermediate and posterior claws very deeply 

 cleft, the two teeth strongly hooked, the upper one only half the 

 thickness of the lower. 



Key to the Species. 



Light straw-colour, with an iridescent sheen ; prothorax and elytra 



very slightly punctulate straminea. 



Testaceous, without any iridescent sheen ; prothorax and elytra 



plainly punctate ovampoana. 



Alogistotarsa straminea, n. spec. 



Light straw-colour, with an iridescent sheen, head more or less 

 deeply infuscate ; clypeus constricted laterally close to the apex and 

 with the anterior margin plainly tri-dentate, excavate in front of the 

 supra-median transverse keel which runs parallel to the frontal 

 suture, apical part of the clypeus smooth, posterior finely punctate, 

 frontal part also closely punctate ; prothorax rounded laterally in the 

 anterior part, but not towards the base the angles of which are 

 distinct, somewhat convex, -fringed laterally with equi-distant 

 bristles, and covered with fine, shallow punctures ; scutellum faintly 

 punctate ; elytra sub-cylindrical, striate, with the punctures on the 

 non-convex intervals slightly rugose, and not deep ; abdomen and 

 metasternum very strongly compressed laterally, iridescent ; 

 pygidium convex, punctulate, each abdominal segment with a row 

 of deep setigerous punctures. 



Length 5^- mm. ; width 24 mm. 



Hob. Orange Eiver Colony (Bothaville). 



Alogitotarsa ovampoana, n. spec. 



The description of A. straminea applies entirely to this species, 

 which, however, differs in being much more deeply punctured all over, 

 in the absence of iridescence, and in being testaceous instead of 

 straw-coloured ; the frontal part of the head is redder than the 

 prothorax, but is not infuscate, and the striation on the elytra is 

 deeper than in A. straminea. 



Length 6 mm.; width 3J- mm. 



Hab. Ovampoland. 



