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BY THOMAS G. SLOANE. 353 



Head transverse (4*3 mm. across eyes); anterior margin truncate 

 between intermediate angles, arcuate outside intermediate angles; 

 frontal sulci parallel, not deep; preocular sulcus lightly marked- 

 preocular process small, rounded; eyes reniform, lightly convex. 

 Prothorax transverse (32 x 5*7 mm.), much wider than head, 

 convex, declivous to base ; sides lightly rounded ; posterior 

 angles rounded off'; anterior angles strongly advanced, roundly 

 obtuse; basal lobe well developed, rounded; a strong sinuosity on 

 each side of basal lobe; border widely reflexed, most strongly so 

 at posterior angles; marginal channel wide; median line lightly 

 marked. Elytra ovate (7-7 x 5-5 mm.), lightly rounded on sides; 

 base obliquely declivous, punctate; lateral channel wide; border 

 reflexed, strongly upturned at humeral angles; a row of closely 

 placed ocellate punctures along lateral margins. Prosternum 

 with intercoxal part lightly and widely channelled, truncate at 

 base; two marginal punctures on each side. Legs light; anterior 

 femora not swollen in middle; anterior tibiae with upper external 

 tooth very small, surmounted by two small denticulations. 

 Length 15-5, breadth 5*7 mm. 



Hah. — N.W.Australia : Carnot Bay (type Coll. Sloane). 



I owe this species to the kindness of Mr. C. French; it belono-s 

 to the C. amaragduhmi group and is allied to C. virescens SI., but 

 differs by smaller size; lighter form; eyes more convex, more 

 lightly inclosed in smaller orbits posteriorly; lateral channel much 

 narrower at sinuosities on each side of prothoracic basal lobe 

 (border not reflexed at these sinuosities); elytra narrower, and 

 less rounded on sides, disc of a beautiful metallic-blue colour. 

 In general appearance it closely resembles C. froggatti SI., but 

 differs decidedly by head wider, more convex, anterior angles less 

 prominent, anterior margin not sloping forward on each side to 

 summit of intermediate angles, frontal sulci parallel, ejes less 

 prominent; prothorax more transverse; elytral margin wider; 

 prosternum with intercoxal part not deeply longitudinally 

 channelled. 



