BY ARTHUR iM. LEA. 543 



Hab.—Behn River, E. Kimberley, W.A. (Mr. R. Helms). 



Somewhat resembles olivaceus, Macleay, in general appearance, 

 but differs in being larger, more coarsely punctate, and with longer, 

 differently punctured and differently margined abdomen. 



Stenus indistinctus, n.sp. 



Shining; very finely pubescent. Black ; legs brown, base of 

 femora yellow; palpi very pale. 



Heal finely punctate in median impression, more coarsely at 

 sides. Prothorax rather densely punctate, punctures somewhat 

 smaller and sparser on disc than elsewhere; base slightly wider 

 than apex. Elytra, scarcely longer than prothorax; densely and 

 coarsely punctate; apex widely emarginate. J6'/o?weM with basal 

 segments moderately, 2nd feebly margined; five basal segments 

 rather sparsely punctate, punctures moderately distinct. Legs 

 long; femora slightly thickened; tarsi simple. Length to apex of 

 elytra 2^, of abdomen 5^ mm. 



/M6.— Clarence River, N.S.W. 



Remarkably close to olivaceus, Maclea)^, but having only two 

 of the abdominal segments margined; it is also rather more stoutly 

 built and with a shorter prothorax. 



StENUS VILLOSIVEJfTRIS, n.Sp. 



Shining; abdomen with long, thin, straggling whitish hairs. 

 Black; prothorax deep blackish-blue, elytra with a bronzy tint in 

 middle, sides bluish ; legs dark brown, base of femora pale ; 

 antennae almost entirely black; two apical joints of palpi black. 



Head rather finely but deeply punctate; with a moderately 

 distinct impunctate median ridge and several feebler ones at sides. 

 Fruihorax moderately densely and almost regularly punctate; apex 

 narrow^er than base; base with a very feeble transverse impression. 

 Elytra longer than prothorax, rather coarsely and densely 

 punctate, apex widely emarginate. Ahdomen with basal segment 

 strongly, the 2nd very feebly margined; basal segment densely 

 and strongly punctate, 2nd and 3rd moderately so, 4th and 5th 



