BY THE REV. T. BLACKBURN. 491 



moderately strongly emarginate, the base being but little lobed, 

 the sides gently arched (their greatest divergence close to the 

 base), the front angles sharp and moderately produced, the hind 

 angles obtuse but fairly well defined. The underside is much like 

 that of II. punctipennis, Blackb., except in being throughout more 

 strongly and less closely punctured. This species belongs to 

 Section III. of Heteronyx, and in the tabulation (P.L.S.N.S.W., 

 1889) would stand with raucinasus under " EE " near the end of 

 p. 142. From that insect it differs by its much less strongly 

 rugulose labrum, head and prothorax (the sculpture especially of 

 the head behind the labrum being extremely different, — in rauci- 

 nasus very coarse and close, and very strongly rugulose, — in 

 consanguineus almost smooth, and consisting of isolated and but 

 little crowded punctures scarcely differing from those of the 

 prothorax), and by the very much more strongly marked clypeal 

 suture. 



Victoria ; Alpine district. 



Heteronyx nitidus, Blackb. 



I have received from Mr. French another specimen (from 

 Yilgarn) of this insect, the elytra of which are a little more 

 strongly punctured than in the type, — so that the expression 

 " leviter punctulata " could hardly be applied to those organs. 

 As in the type the puncturation has the blurred appearance con- 

 fused with transverse rngulosities which I mentioned as distin- 

 guishing it from the puncturation of H. frontalis. I think the 

 type was an old specimen which had probably been dead some 

 time when captured and that its puncturation was somewhat 

 obliterated. 



Heteronyx setifer, Blackb. 



Among some specimens of Heteronyx from Yilgarn (sent by 

 Mr. French) I find a single example which I should not like to 

 separate from the S. Australian, and in my experience very rare, 

 EL. setifer. It is a little more sparsely punctured than the type 

 (especially on the elytra), but I do not think it can be regarded as 

 distinct. 



