396 STUDIES IN AUSTRALIAN ENTOMOLOGY, XVI., 



I first received this species, in 1904, from Mr. C. French; sub- 

 sequently(January, 1906) Mr. H. J. Carter took it plentifully on 

 the margin of the Snowy River, at Jinclabyne. 



Genus L a c ii n o T h o r A x . 



Lachnothorax palustris, n.sp. 



Head large, diamond-shaped, narrowly strangulate posteriorly 

 and united to prothorax by a condyle; prothorax globose; elytra 

 wide, with an irregular transverse inpression on disc at basal 

 tliird, striate, the strise entire, interstices finely setigero-punctate, 

 tarsi with upper surface hairy, fourth joint simple. Black with 

 an olivaceous tint (or, elytra obscurely bronzed); apical declivity 

 of elytra obscurely tinged with brown; femora clear brown on 

 basal two-thirds, infuscate towards apex; tibise infuscate with 

 middle third testaceous, tarsi fuscous; antennae, mandibles and 

 palpi piceous. 



Head convex(l"35 mm. across eyes), setigero-punctate, strongly 

 constricted posteriorly, very narrow and strangulate by a trans- 

 verse furrow just before base; eyes convex, prominent. Pro- 

 thorax a little wider than head, longer than broad(l'75 x 1'45 

 mm.), convex transversely and longitudinally; sides roundly 

 ampliate in middle, very strongly and roundly narrowed to apex, 

 strongly and shortly narrowed posteriorly, strongly sinuate at 

 basal fifth, meeting base at right angles; apex and base truncate; 

 anterior angles closely applied to head; a lateral ridge on each 

 side of pronotum; upper and under surfaces setigero-punctate- 

 the puncturation strong beneath, finer and more sparse on upper 

 surface; constricted basal area closely punctate; sutures of under 

 sui-face obliterated; prosternal episterna ampliate, and visible 

 from above outside lateral border of pronotum. Elytra convex, 

 ampliate, twice as wide as prothorax(4:-5 x 3 mm.), widest before 

 middle; sides lightly rounded; base arcuate, declivous; apex 

 widely rounded,* striae strongl}' impressed, reaching to apex, 



* It is impossible to regard the apex of this species as that of a Trim- 

 catipenne, it being rounded in an even cuive, without even the usual apical 

 sinuosities. 



