170 Proceedings of tlte Royal Society of Victoria. 



carinatis, spina humerali parva ; metasterni disco vix perspicue 

 punctulato ; tarsorum pqsticorum articulo basali valde elongate. 



Long. 1-/^1. Lat. ^"^'l. 



Somewhat intermediate in form between A. gibbus, Blackb., 

 and its allies, and the more parallel depressed species. The 

 puncturation of the pronotum is mucii like that of the species I 

 take to be A. australis, Har., but is somewhat more rugulose 

 and less close near the hind angles. The reddish apical region of 

 the elytra seems to be constant. The crenulations of the elytral 

 striae are feebly impressed, as in A. gibbus, from which species it 

 is readily distinguishable by, inter alia, its much less smooth head 

 and the much closer and more even puncturation of its pronotum. 

 It is not unlike A. torridus, Blackl)., structurally, but differs by, 

 inter alia, its very much greater size, and its head more or less 

 granulate and not distictly punctulate. From A. goyderensis, 

 Blackb., it differs by, inter alia, the much more feeble crenulation 

 of its elytral striae. 



W. Australia. 



A. wALKERi, sp. nov. 



Minus angustus; modice parallelus; minus convexus; fere 

 glaber; opacus; niger, palpis antennis pedibusque ferrugineis; 

 capite confertim subtilissime punctulato et longitudinaliter 

 strigoso, antice emarginato; prothorace subquadrato, quam 

 longiori fere ut 3 ad 2 latiori, supra aequaliter confertim subtiliter 

 punctulato, lateribus vix arcuatis, angulis omnibus obtusis, basi 

 baud marginata; scutello triangulari minus elongato; elytris 

 sulcatis, sulcis vix perspicue crenulatis; interstitiis cariniformibus, 

 spina humerali parva; metasterni disco subfortiter minus sparsim 

 punctulato; tarsorum posticorum articulo basali valde elongate. 



Long. U 1. Lat. \ 1. 



The extremely fine close and even puncturation of the 

 pronotum of this very small species distinguishes it readily from 

 all the other Australian Ataenii known to me. 



N. Territory of S. Australia (Mr. J. J. Walker). 



Euparia. 



The following species must, I think, be referred to this 

 genus. I regret that I have not in my extra-Australian collec- 



