BY THE REV. T. BLACKBURN. 823 



at Border Town, in which the ground color is paler but more 

 suffused with brownish, so that the dark sutui-e is less con- 

 spicuous. 



Hydrobaticus Australis, sp.no v. 



Ovalis; minus convexus ; minus nitidus; brunneus, fusco- 

 umbratus ; prothorace antice quam postice sat evidenter angus- 

 tiori ; crebre sat fortiter duplo-pvinctulatus ; elytris obscure striato- 

 punctulatis. Long. 2| lines, lat. li lines. 



Head almost wholly testaceous ; clypeal sutui-e well defined ; 

 front of clypeus decidedly emarginate ; surface of head strongly 

 and not very closely punctured ; labrum black ; palpi and 

 antennte testaceous, the latter with the club dusky. Prothorax 

 considerably wider than long (as 5 to 3), narrowed from base to 

 apex with gently curved sides ; base about half again as wide as 

 apex, the former nearly straight, the latter slightly emarginate ; 

 hind angles slightly raai-ked, obtuse ; front angles quite rounded 

 off; surface reddish testaceous with some fuscous markings the 

 most conspicuous of which are two longitudinal lines placed in 

 the hinder half one on either side of the middle, closely and 

 rather strongly punctured (the punctures of different sizss con- 

 fusedly mixed together). Elytra rounded at the apex, each with 

 about 10 rows of punctures placed in scarcely impressed strise, the 

 punctures very closely packed in the rows ; the interstices quite 

 flat and confusedly studded with punctures similar to those in the 

 rows, and also (in about equal numbers) with much smaller 

 punctures. The underside is black, very minutely and closely 

 punctured; the femora are black, the tibise and tarsi reddish. 



Somewhat variable in color. I have seen specimens, which I 

 canaot separate specifically, with the legs and the whole upper 

 surface testaceous except the two dark lines on the prothorax 

 which are equally well defined in all the specimens I have seen, 

 and therefore more conspicuous in the lighter-colored examples. 



Apparently common throughout South Australia ; I have it 

 also from Victoria. 



