BY THOMAS G. SLOANE. 387 



Head large, convex (5 5 x 7 mm.); anterior margin extending 

 outward on each side from intermediate angles of clypeus in a 

 gentle curve without sinuosities; frontal sulci deep, diverging 

 backwards; lateral frontal spaces abruptly acclivous above eyes; 

 clypeus strongly declivous and deeply emarginate behind labrum, 

 intermediate angles obtuse, not advanced ; preocular sulcus 

 shallow; preocular process small, hardly divided from frontal 

 lateral space; eyes convex, deeply enclosed at base, orbits project- 

 ing from head in a long oblique slope behind eyes; two supraorbital 

 punctures on each side. Prothorax transverse (6-3 x 8 -6 mm.), 

 convex, declivous to basal lobe; sides strongly rounded, a strong 

 sinuosity on each side of basal lobe; apex widely emarginate; 

 anterior angles lightly advanced, obtuse; basal area depressed, 

 defined by a transverse line; basal lobe roundly truncate; border 

 narrow, reflexed; two marginal punctures on each side, the 

 anterior distant from apex; median line deeply impressed. Elytra 

 convex, wider than prothorax (15-5 x 9-5 mm.), widest before 

 middle, gradually and roundly angustate to apex; sides strongly 

 rounded to base, humeral angles not marked; base abruiDt, trun- 

 cate in a lightly emarginate curve; border narrow; inflexed 

 margins wide; four fine punctures on base of each elytron (not 

 placed obliquely in a depression), lateral punctures as usual in 

 the genus. Presternum with intercoxal part raised above the plane 

 of the pectoral part and lightly canaliculate. Length 29-32, 

 breadth 9-5-102 mm. 



Hab.— Shark's Bay, W.A. (the type; Coll. French); N.W. Coast 

 (a second specimen, kindly given to me by Mr. French, which is 

 also the £, and has the elytra less ampliate behind the shoulders 

 than the type). 



The conspicuous character of this species is the pyriform .shape 

 of the elytra, which are widest about the basal third and taper 

 roundly to the apex. It is allied to C. superbum, Casteln., from 

 which it differs by its more convex head, more strongly acclivous 

 above eyes; prothorax more strongly rounded on the anterior 

 part of the sides, the anterior angles more marked and less 



