222 



quam 2 US raanifeste longiori, quani 3 US sat multo breviori;: 

 unguiculis appendiculatis. Long., 3 1. ; lat., If 1. 



I omitted this species when I was revising Group II. 

 because I was disposed to consider it generically distinct from 

 Heteronyx, but on further consideration its peculiar char- 

 acters appear to me to be only exaggerations of what is to be 

 found in species that certainly must not be separated from 

 Heteronyx. Its prothorax is more # strongly transverse and its 

 hind coxae shorter than those of any other Heteronyx known 

 to me, and it is remarkable that these two characters should 

 be present in one species. I think there is only one other 

 Heteronyx (H. setifer, Blackb.) in which the basal joint of 

 the hind tarsi is conspicuously longer than the 2nd joint. The- 

 pimcturation of both pronotum and elytra is somewhat acer- 

 vate. In the tabulation of this Group (Trans. Roy. Soc, 

 S.A., 1908, p. 384) this species will stand next to H. brevi- 

 collis, Blackb., from which it may be separated thus: — 



E. Hind angles of prothorax obtuse ... brevicollis, Blackb. 

 EE. Hind angles of prothorax sharply 



right angles coxalis, Blackb. 



N.B. — The type of II. coxalis is perhaps abraded, but 

 the species is certainly one with very little if any pubescence. 



New South Wales; Gosford (Mr. Lea). 



H. costulatus, Blackb. Sat elongatus, postice leviter dila- 

 tatus; nitidus; f errugineus ; sat glaber, pronoto pilis 

 erectis sat elongatis antice fimbriato, nonnullis in 

 capite elytrisque dispersis; clypeo grosse sat crebre rugu- 

 loso, antice subtruncato ; labro clypei planum haud 

 attingenti; fronte grosse nee crebre nee rugulose punctu- 

 lata ; fronte clypeoque ut plana sat disparia visis ; 

 antennis 8-articulatis ; prothorace quam longiori duplo 

 latiori, antice parum angustato, supra sparsim fortiter 

 subacervatim punctulato (puncturis circiter 12 in segmenti 

 longitudine), lateribus (superne visis) leviter arcuatis, 

 angulis anticis sat acutis modice productis posticis (sup- 

 erne visis) obtusis, basi vix sinuata, margine basali sat 

 aequali; elytris costulis circiter 5 (sutura inclusa, 5 a 

 subobsoleta) crnatis, fortiter subseriatim minus crebre 

 punctulatis (trans elytron puncturis circiter 18) ; pygidio 

 subtilius minus crebre punctulato ; coxis posticis quam 

 metasternum sat brevioribus quam segmentum ventrale 

 2 nm sat longioribus ; tibiis anticis extus tridentatis ; 

 tarsorum posticorum articulo basali quam 2 US paullo 

 breviori, 3° sat aequali : unguiculis appendiculatis. 

 Long., 3 1. ; lat., If 1. 



