1896.] of the ColeojHera of South Africa. 601 



The difference between Scotodi])nuH and Heterillus consists in the 

 presence of eyes in the latter, although of a very degraded character, 

 and also in the dilatation of the two basal joints of the anterior tarsi 

 of the male. 



Heterillus adventitius. 



Light brown, with the antennae and legs lighter ; head with 

 numerous scattered, short, more or less decumbent setae ; antennae 

 very pubescent, the joints very moniliforrji and bristly ; prothorax as 

 broad as long, cordiform in the anterior part, nearly straight in the 

 posterior part from the second lateral setigerous puncture which is 

 situated a little beyond the median part to the basal angle which is 

 moderately sharp ; elytra elongated, subparallel, abruptly rounded 

 behind, quite plane, not covering the pygidium, densely pubescent 

 and with three long discoidal bristles on each side ; one below the 

 base, one in the middle, and one at the apex ; legs briefly pubescent. 

 Length 1.55 mm. ; width 0.58 mm. 



Hab. Cape Colony (Cape Town). 



