1907.] Catalogue of the Coleoptera of South Africa. 301 



Key to the Species. 



A 2 . Clypeus longer than the head and acuminate. 



B 2 . Both sexes similarly coloured. 



C 2 . Head and prothorax almost glabrous in both sexes. 



Elytra rufescent and having a discoidal black patch, a 

 sutural cuneiform black band running from the middle 

 to the apex, and a narrow black band along the outer 

 margin Umbatus. 



B 1 . Both sexes differently coloured. 



C 2 . Head and prothorax almost glabrous in both sexes. 



Elytra flavescent in the S , and with a sutural black 

 band reaching from the middle to the apex, outer 

 margin with a narrow black band; elytra quite black 

 in the ? clavus. 



C 1 . Head and prothorax pubescent. 



Elytra almost straw-coloured in the s , suture with a 

 non-interrupted black band, outer margin with a 

 narrow black band ; elytra rufescent in the ? but with 

 a very broad black sutural and outer marginal band . . suturalis. 



A 1 . Clypeus slightly shorter than the head, and not acuminate. 



Elytra not narrowed at apex, red, with a narrow sutural black 



band slightly dilated in the centre ' rufipennis. 



Elytra slightly narrowing towards the apex, pale yellow with a 

 median quadrate black patch continued as a broad band along 

 the suture, outer margin black plagosus. 



Agenius limbatus, Olivier, 



Entomol., L, 5, p. 59, pi. 9, fig. 100; 



Gory and Perch., Mon. Cet., p. 95, pi. 11, fig. 4. 



Black, with the elytra testaceous yellow, upper part not shiny ; 

 clypeus longer than the head in both sexes, more deeply strangulate 

 laterally at the base, broader and also slightly more emarginate at 

 apex in the male than in the female, covered, like the head, with 

 deep, round, sub-confluent punctures, and with the vertex of the 

 head sparsely villose ; antennae black, with the club one-third longer 

 in the male than in the female ; prothorax diagonally ampliated 

 from the apex to about the median part, almost equally narrowed 

 thence to the posterior angle which is plain, and with the base 

 slightly bi-sinuate, plane, closely punctured, the punctures deeper 



