164 Proceedings of the Royal ^Society of Victoria. 



bearing three rows of granules, a very feeble 4th costa, a 6th 

 costa only slightly enfeebled, and tlie rest of the costae well 

 defined ; but on the nearer elytron (the external face of whose 

 costae is towards the observer) the 2nd costae appears distinct, 

 though feeble, the 4th appears not much enfeebled, and the rest 

 all strongly elevated. 



IST. S. Wales ; Clarence River (sent by Mr. Lea). 



A. SPARSicoLLis, sp. nov. 



Subparallelus ; sat elongatus ; fere glaber ; obscure rufo-piceus, 

 capite antice prothoracis lateribus palpis antennis pedibusque 

 rufis ; capite subtiliter aspero longitudinaliter strigato, antice 

 emarginato ; prothorace quam longiori fere ut 5 ad 3 latiori, 

 subquadrato, supra in disco grosse inaequaliter (postice minus, 

 antice magis, sparsim) punctulato, latera versus confertim 

 ruguloso, longitudinaliter sulcato (sulco postice magis profundo), 

 lateribus breviter setosis subtiliter crenulatis fere rectis, angulis 

 anticis obtusis posticis fere rectis, margine pone angulos posticos 

 late emarginato, basi baud marginata ; scutello triangulari sat 

 elongato ; elytris crenulato-striatis, interstitiis carinatis, spina 

 humerali breviter acuta ; metasterno grosse sat aequaliter vix 

 crebre punctulato ; tarsorum posticorum articulo basali valde 

 elongato. 



Long. 2 1. Lat. j'lj- 1. 



Allied to the S. Australian species which, I have no doubt, is 

 A. australis, Har., but differing from it by being of somewhat 

 narrower form and more reddish colour, and especially by the 

 puncturation of its pronotuni (which not only becomes finer 

 towards the front of the disc but also much less close, whereas in 

 the S. Australian species it becomes not only finer towards the 

 front but also considerably closer), and by the distinct crenula- 

 tion of the sides of that segment. In sparsicollis, also, the 

 metasternum is less closely punctulate. In other respects the 

 above description of sparsicollis applies also to the species that I 

 regaixl as australis, Har. 



Central Australia (Oodnadatta). 



A. (Ammoecius) semicornutus, Macl. 

 The description of this species is not sufficiently detailed for 

 identification, but I have two examples from the original locality 



