1230 REVISION OF THE GENUS HETERONYX, 



front and slightly more transverse, decidedly coarser puncturation 

 of ventral segments, (fee, together with totally different colour 

 seem to point to specific distinctness. The punctures on the pro- 

 thorax are spaced so that about 17 of average distance apart would 

 range down the middle line. 



Edithburgh ; taken by Mr. McDougall. 



The following species I have been unable to identify ; some 

 (and perhaps all) of them belong to this group. 



H. laticeps, Burm. A large species (l^i^g- 6 lines) said to be of 

 a chestnut colour and to have the apical membrane of its elytra 

 very conspicuous. The description of its puncturation is very 

 obscure, and there is no indication of locality beyond " Australia." 



H. pilosellus, Blanch. The description of this species is identical 

 with that of H. piceus in respect of all characters of any real value 

 for identification. It is therefore quite likely that the species I 

 have treated as H. jnceus may be this. Both are said to occur in 

 " Eastern New Holland." 



//. planatus, Burm. Said to occur at Adelaide and to be 

 remarkable for its depressed form (long. 4 lines). I know no 

 species corresponding to this description. 



H. prcecox, Er., H. tempestivus^ Er. Both from Tasmania. 

 According to Erichsonboth have 9-jointed antennae, but Blanchard 

 makes the former the type of a new genus with 8-jointed antennae 

 and peculiarly shaped labrum, while Lacordaire states that the 

 latter has antennae of only 8 joints. Under these circumstances 

 it is evident that no species (at any rate unless taken in Tasmania) 

 could be reasonably made to bear these names without having 

 been compared with the original type. 



GROUP III. 



This group (identical with my Section II) consists of species that 

 cannot rightly be placed in either of the other sections. The 

 relation inter se of the labrum and clypeus is usually as follows : — 



