642 STUDIES IN AUSTRALIAN ENTOMOLOGY, 



The bipunctate elytra place this species with E. hipunctatus, 

 Macl., E. ohesus, Macl., and E. tatei, Blackb. In general appear- 

 ance it resembles E. hij)unctatus, from which however the lobate 

 prothorax will sufficiently distinguish it ; from E. ohesus it may be 

 distinguished by the prothorax being decidedly lobate, and broadly 

 margined laterally, by the elytra being proportionately broader, 

 less convex, more broadly and decidedly emarginate at the base, 

 the lateral margins broader and far more conspicuous, especially at 

 the shoulders. E. tatei is unknown to me, but judging from the 

 description it is more closely allied to E. ohesus than to the present 

 species.* 



Helluo insignis, n.sp. 



Black. General form depressed. Head large, flat (as in H. cos- 

 tatus). Prothorax glabi'ous, cordate (5x6 mm.), widest about 

 anterior third, rugulose, punctate ; the punctures large, thickly 

 placed along margins, thinly in middle ; lateral border narrow, 

 reflexed, sharply sinuate behind and meeting the base squarely ; 

 base broadly emarginate in middle and cut obliquely forward on 

 each side to the posterior angles, these prominent ; a transverse 

 impression in front ; median line clearly and distinctly impressed. 

 Elytra glabrous, broadly ovate (13 x 10 mm.), widest behind the 

 middle ; sides lightly rounded ; shoulders rounded ; apex broad, 

 truncate; 4 costse on each elytron (including suture), between every 

 costa a smooth shining interstice, between every costa and inter- 

 stice a strong punctate stria, every costa with two rows of thinly 



* I take the present opportunity to make the following notes on three 

 New South Wales species of Eury-^caphiis known to me :- 



(1) -E. hipunctatus. Macl. — I have taken this species at Mulwala on the 



Murray, and at Condobolin on the Lachlan. 



(2) E. obesus, Macl. = E. ferox, Sloane, P.L.S.N.S.W., 1888 (2), 

 Vol. III., p. 1109 — this I have ascertained by comparison of the 

 types ; when I wrote I only knew E. obesus from description. The 

 faint puncturation of the elytra noted in my description is not 

 natural. The habitat of E. obesus is therefore western New South 

 Wales, not West Australia as believed by Sir W. Macleay. 



(3) E. minor, Macl.= E. arenarius, Sloane, I.e., p. 1110 — also from com- 



parison with type. This is a widely spread species in N.S.W. ; I have 

 taken it at Mulwala, Condobolin, and at Coouabarabran on the Cas- 

 tlereagh. 



