506 ME. GILBERT J. AEROW ON COLEOPTEEA 



parum conveso, lateribus subtiliter regulariter arcuatis, antice moclice convergeiitibus, aiigulis 

 anticis acutis, j)osticis paulo obtusis ; elytris longissimis, sicut prothorace et pygirlio sequaliter 

 baud crebre punctato, hoc medio fere Icevi ; antennis 9-ari;iculatis ; pedibus gracilibus, tibiis 

 anticis autem brevibus, latis, obtuse S-dentatis ; unguibus loiige baud late appendiculatis. 

 Long. 19 mm. ; lat. max. 9 mm. 



Utakwa Valley, 4000-6000 ft.; 1 ?. {Type of the species.) 



The genus Ileteronyx is almost confined to Australia, where more than 300 species 

 are known. Only a single one has hitherto been recorded from New Guinea. This 

 second species is the largest Heteronyx yet found, the largest Australian species being 

 17 mm. in length. According to Blackburn's subdivision, H. colossus belongs to 

 Group III. It is very elongate and unusually smooth and shining, the puncturatiou 

 of the upper surface being fine and not close and the clothing reduced to a very few 

 scattered hairs, rather more scattered rrpon the head and pygidium. The labrum 

 is prominent and about a third of the width of the head, the clypeus rather deeply 

 emarginate. The legs are very long and slender, but the front tibia is short and 

 broad, with three short and blunt teeth. 



Only a single specimen was found. 



Heteronyx sp. 

 Setakwa River ; 1. 



Apogonia sp. 



Utakwa River; 1. 



A single specimen, in bad condition, of a species apparently undescribed. 



Lepidoderma sp. 

 Utakwa River ; 1 ? . 



bupeestid.e. 



Cyphogastra wollastoni. 



This species is described in the footnote below by Mr. C. O. Waterhouse*. 



* CyPHOGASTKA "WOLLASTONI, Sp. D. 



Brassjr-coppery above ; golden green below. Head closely and deeply punctured, with an oblique smooth 

 carina within each eye — these converge towards the vertex. Antennae black, the basal joint shaded with green. 

 Thorax quite parallel at the sides, the anterior angles cut out, leaving a distinct but obtuse angular 

 projection not far from the front, the median channel rather finely and closely punctured, the raised space 

 on each side of it with scattered punctures, the whole of the sides deeply, closely, and rugosely punctured, 

 without distinct impressions. Elytra very long, much attenuated and compressed at the apex, with the punctur- 

 atiou strong at the base, gradually becoming finer posteriorly, the punctures at the apex extremely fine, the 

 apex itself blue-black. Legs obscure green above, bright golden-green below, the bases of the femora coppery. 



