166 Proceedings of the Royal Society of Victoria. 



the sides of the pronotum with puncturation of the same kind as 

 that of the disc and with unpunctured areas, the feeble humeral 

 spines of the elytra, and the slight convexity of the elytral inter- 

 stices. There is no true marginal carina on the dorsal surface of 

 the pronotum, but the hind face of the prothorax (below the 

 plane of the dorsal surface) projects as a ridge that from some 

 points of view simulates a basal carina of the pronotum. 

 N. S.Wales; Tweed River (Mr. OUiff). 



A. NUDUS, sp. nov. 



8at angustus, sat parallelus; sat depressus; sat nitidus; fere 

 glaber; niger vel piceo-niger, pedibus dilutioribus, an tennis 

 palpisque rufe.scentibus ; capite (parte basali excepta) vix mani- 

 feste punctulato, antice emarginato; sutura clypeali obsoleta; 

 prothorace fere ut A. tweedensis, Blackb., sed quam longiori ut 3 

 ad 2 latiori; scutello ut A. tweedensis; elytris crenulato-striatis, 

 interstitiis minus latis antice manifeste carinatis postice alte 

 anguste carinatis, spina humerali parva; metasterni disco haud 

 punctulato; tarsorum posticorum articulo basali valde elongato. 



Long. 1^\ 1. Lat. T-V 1. 



Narrower, more parallel, and more depressed than the pre- 

 ceding A. tweedensis, Blackb.; the prothorax more transverse; 

 and the elytral interstices narrower, in front a little more convex, 

 and near the apex very much more convex. The elytral inter- 

 stices, compared with those of the species referred to above as A. 

 australis, Har., are in front much (but, near the apex, scarcely) 

 less convex. 



W. Australia; Pinjarrah (Mr. Lea). 



A. GiBBUS, sp. nov. 



Minus angustus; minus parallelus; sat convexus; minus 

 nitidus; fere glaber; niger, antennis palpis pedibusque rufes 

 centibus; capite (partibus basali et laterali exceptis) vix perspicue 

 punctulato, antice emarginato; sutura clypeali vix manifesta; 

 pi'othorace quam longiori ut 4 ad 3 latiori, subquadrato, supra 

 inaequaliter vix crebre sat fortiter (antice pauUo magis subtiliter) 

 punctulato, lateribus leviter arcuatis, angulis omnibus obtusis, 

 basi infra superficiei planum marginata; scutello triangulari 



