BY THOMAS (i. SLOANE. 445 



angles rounded, not marked ; lateral border narrow, eijual ; 

 median line obsoletely impressed ; two clearly marked linear 

 impressions on each side of base near basal angles, the external 

 \ ery short, the inner a little longer ; posterior marginal seta 

 placed a little before the base at extremity of marginal channel. 

 Elytra oblong, a little wider than prothorax (4-5 x 2-6 mm.), 

 depressed, abruptly roundly declivous to sides, strongly declivous 

 to apex ; sides subparallel (very lightly rounded) ; base suli- 

 truncate, very lightly emarginate ; shoulders rounded, hardly 

 advanced ; apex strongly sinuate on each side ; four inner 

 stria? strong, entire, simple, fifth, sixth and seventh wanting 

 (seventh indicated on apical declivity), eighth strongly impressed ; 

 four inner interstices convex ; lateral interstice punctate on basal 

 and apical third ; lateral border narrow ; basal border weak, 

 curved on posterior margin ; marginal channel narrow. 

 Pi-osternuni truncate and margined at base ; episterna with a 

 few feeble longitudinal rugte towards inner margin. Metasternal 

 episterna nai'rowly elongate. Ventral segments smooth in 

 middle, transversely sulcate. Legs light ; posterior tarsi sulcate 

 externally,; posterior ti'ochanters impunctate ; ^ with three Ijasal 

 joints of anterior tarsi lightly dilatate and squamulose Ijehjw. 



Length 8, breadth 2-6 mm. 



//a6. --Darling River, N.S.W. (Brought from the Darling 

 River by Mr. R. Helms, probably from the neighbourhood of 

 Bourke. ) 



This species is closely allied to D. castelnaui, MacL, but having 

 compared it with Sir William Macleay's type, I am able to state 

 with certainty they are distinct. From D. rugisternus, SL, it may 

 ])e distinguished easily by its narrower and more depressed form, 

 proportionately longer prothorax, and the feeble rugosity of the 

 prosternal episterna. 



Darodilia rugisternus, n.sp. 



Elongate-oval, robust ; body shortly pedunculate, elytra ovate, 

 convex, strongly 4-striate on disc, smooth towards sides ; 



