BY THOMAS G. SLOANE. 1G5 



Head large (14 x IS mm.), anterior part depressed; vertex 

 wide, lightly convex, more or less punctate: clypeus declivous, 

 divided from front by a wide — usually punctulate — depression; 

 median part bordered, wide, lightly emarginate-truncate, its 

 angles projecting obtusely beyond wings; these small, almost 

 square, with external angle obtuse; supra-antennal plates large, 

 boi'dered, projecting strongly and squarely beyond wings of 

 clypeus, anterior angle obtuse, but .marked; facial sulci deep, 

 recurved part obsolete (sometimes feebly indicated); facial carintij 

 strong; eyes convex, rather prominent, lightly enclosed behind. 

 Mentum wide, deeply and obliquely emarginate; lobes widely 

 rounded at apex; median tooth triangular, acute. Prothoi^ax 

 depressed, quadrate (2 x 2-1 mm.), widest behind middle, very 

 shortly declivous to base, a little narrowed anteriorly (ant. width 

 1 9 mm.); sides very lightly rounded; posterior angles rounded, 

 not marked ; basal curve short; anterior margin truncate; anterior 

 angles wide, obtuse, a little prominent; border narrow; median 

 and anterior lines strongly impressed; lateral basal impres.sions 

 obsolete, or very lightly marked. Elytra depressed, hardly wider 

 than prothorax (4 5 x 2-2 mm.), parallel, widely rounded at apex, 

 truncate at base; striae punctate, weaker towards apex, fifth and 

 sixth obsolete except near base, seventh lightly marked, not 

 punctate; eighth interstice narrow, subcai'inate on apical curve; 

 border narrow. Prosternum not protuberant; episterna finely 

 shagreened, marked with wavy transverse lines. Anterior femora 

 short, wide; anterior tibia? strongly 3-dentate, a small triangular 

 prominence above the upper tooth. 



Length 7 •2-8- 6, breadth 2-2-7 mm. 



Hah. : Victoria — Swan Hill (C. French); N.S. Wales— Tirana 

 District (Sloane — moderately plentiful on the edges of a large 

 marsh 20 miles N.E. from Tirana.) 



Allied to C. ohliquata, Putz., which it greatly resembles; it is 

 a broader and more depressed species (being the most depressed 

 Australian species), the prothorax is more transverse, being 

 broader than long, and less parallel on the sides. The sub- 

 marginal humeral carina of the elytra is very short and hardly 



