382 



interstitiis convexis; pygidio sat fortiter sat crebre sub- 

 rugulose punctulato; coxis posticis quam metasternum 

 multo brevioribus, quam segmentum ventrale 2""! parum 

 longioribus; tibiis anticis extus minus fortiter trident- 

 atis; tarsorum posticorum articulo basali quam 2"s 

 parum breviori, 3° sat sequali ; unguiculis bifidis. Long., 

 4 1. ; lat., 2 1. 



This species has scarcely the facies of a Heteronyj-, being 

 of more robust build and brighter colouring than is usual 

 in the genus, but I can find no structural character by 

 which to separate it; its being unique in my collection, how- 

 ever, is a hindrance to the exploration of its characters. It 

 is the only species known to me appertaining to this group 

 and having decidedly striate elytra. The striation, how- 

 ever (as usual when present in lleteronyces), is of a special 

 type, not affecting the elytral puncturation, and consisting 

 of the intervals between obscure longitudinal obtuse ridges 

 rather than true striae. The prothorax has a massive ap- 

 pearance, being scarcely narrowed till close to the front 

 margin, where it becomes much narrower suddenly. The 

 labrum projects from the perpendicular front of the clypeus 

 only feebly. 



New South Wales; Tamworth district (Musson). 

 H. labraUs, sp. nov. Modice elongatus, postice sat dila- 

 tatus; sat nitidus; brunneo-testaceus ; pilis brevibus 

 fulvis minus dense vestitus; clypeo fronteque grosse 

 sparsim punctulatis, illo antice truncato sat fortiter 

 refiexo ; labro sumnio a superficie clypei anlica perpen- 

 diculari baud projecto; fronte clypeoque ut plana multo 

 disparia visis (ilia convexa) ; antennis 8-articulatis ; 

 prothorace quam longiori ut 15 ad 8 latiori, antice sat 

 angustato, supra sat crebre vix fortiter punctulato 

 (puncturis circiter 20 in segmenti longitudine), lateribus 

 sat rotundatis, angulis anticis sat acutis sat productis 

 posticis (superne visis) rotundato-obtnsis, basi obsolete 

 bisinuata, margine basali fere sequaliter elevato ; elytris 

 concinne subtilius punctulatis (trans elytron puncturis 

 circiter 30) ; pygidio (exempli typici unici) baud obser- 

 vato; coxis posticis quam metasternum multo breviori- 

 bus, quam segmentum ventrale 2""> vix longioribus; 

 tibiis anticis extus fortiter tridentatis ; tarsorum posti- 

 corum articulo basali 2° sat sequali, quam •3"-^ paullo 

 longiori; unguiculis bifidis. Long., 4 1. ; lat., 2 1. 



The summit of the labrum applied (and I think sol- 

 dered) to the perpendicular front face of the clypeus easily 

 distinguishes this species. Apart from that character it 



