58 



notum makes it somewhat intermediate between the aggre- 

 gates with tlie pronotum sparsely and closely punctulate. I 

 count 18 punctures in the length of the majority of the speci- 

 mens I have seen, but in one I make 19 punctures and in 

 another 20. Of course the number of punctures may vary 

 slightly in two examples of a species, but I may say that in 

 the other species which I have placed under "I." normal 

 specimens have less than 18 punctures in the length of the 

 prothorax, and I have not counted more than 18 in any of 

 them. In the females of this insect the puncturation of 

 the dorsal surface is a trifle coarser than in the males. 



Western Australia ; Swan River (Mr. Lea). 

 H. metrojjolitanus, sp. nov. Minus elongatus, postice sat 

 dilatatus ; sat nitidus ; brunneo-testaceus ; supra pilis 

 brevibus suberectis sat crebre yestitus ; clypeo (hoc antice 

 rotundato) fronteque fortiter sat crebre minus riigulose 

 punctulatis, ut plana sat disparia visis ; labro summo 

 clypei planum haud attingenti ; antennis 9-articulatis, 

 articulo 3" quam 2^'^ multo breviori ; prothorace quam 

 longiori ut 11 ad 6 latiori, antice leviter angustato, supra 

 subtilius subcrebre punctulato (puncturis circiter 17 in seg- 

 menti longitudine), lateribus sat arcuatis, angulis anticis 

 sat acutis minus productis posticis (superne visis) rotun- 

 dato-obtusis, basi haud sinuata, margine basali asqaali 

 sat subtili ; elytris subtilius sat crebre concinne punctu- 

 latis (trans elytron puncturis circiter 24) ; pygidio (maris 

 sparsim, ferainjE crebre) punctulato ; coxis posticis quam 

 metasternum parum brevioribus, quam segmentum ven- 

 trale 2"'" multo longioribus ; tibiis anticis extus dentibus 

 2 inferioribus magnis et altero subobsoleto armatis : tar- 

 sorum posticorum articulo basali maris 2" sat cequali 

 (feminae nonnihil breviori), quam 3"^" maris sat (feminse 

 paullo) longiori; unguiculis appendiculatis. Long., 3 

 1.; lat., If 1. 



This species, like //. ■'<ocius, Blackb., has the closeness of 

 puncturation of the pronotum somewhat on the dividing line 

 between the preceding and the immediately following aggre- 

 gates. The puncturation of its head is of a type not very 

 usual, and the extreme feebleness of the uppermost tooth of 

 its front tibiae is notable. The slightly more pronounced 

 puncturation of the dorsal surface noticeable in the females 

 of many Heteroni/res is in this species very conspicuous on 

 the pygidium. All the specimens that I have seen are of a 

 very pale-brown colour. 



New South Wales: Sydney (Mr. Lea, etc.). 

 //. inr/rafitf!, sp. nov. Minus elongatus, postice leviter vel 

 vix dilatatus : minus nitidus ; obscure brunneus, antennis 



