04 ON THE CARENIDES (FAM. CAJRABID^E), 



angles, strongly sinuate on each side of base ; anterior margin 

 truncate; anterior angles lightly advanced, obtuse; base truncate; 

 border narrow, thick, reflexed, stronger and continuous between 

 posterior marginal punctures ; median line strongly impressed ; 

 basal area defined on each side by a narrow transverse impression, 

 convex, attaining plane of disc in middle. Elytra hardly as wide 

 as prothorax (13 x G'imm.), widest before the middle, depressed 

 on disc, strongly declivous from edges of discoidal depression ; 

 sides lightly rounded ; base emarginate-truncate ; each elytron 

 terminating at apex in a strong obtuse mucro and having a sub- 

 tuberculate elevation a little before apex in front of apical mucro; 

 a row of separate punctures along margins; four punctures (in a 

 double row) on base of each elytron; inflexed margin rather wide, 

 narrowing from base to apex. A deep transverse concavity on 

 basal declivity of prosternum. Legs light (as usual in genus). 



Length 26, breadth 6'5mm. 



Hub. — West Australia, Champion Bay District (Lea; Coll. Lea). 



Allied to C. miicronafnm, MacL, but differing by its narrower 

 form, longer apical mucros, ante-apical tubercles, the flat discoidal 

 area of the elytra, &c. The edges of the discoidal depression are 

 sharply defined, and almost form a ridge beginning behind each 

 shoulder and ending in the subtuberculate elevations near the 

 apex. 



CONOPTERUM RIVERINjE. 



Cnrenum riverincB, Macl., Trans. Ent. Soc. N.S.W. 1865, i. p. 

 181; Carenum amabile, Casteln., Trans. Roy. Soc. Victoria, 1867, 

 viii. p. 135; Conopterum insigne, Chaud., (?) Ann. Soc. Ent. Belg., 

 1869, p. 148; G. violacetan, Mad, P.L.S.N.S.W., 1887, ii. (2), p. 

 127; C. barnardi, Macl., I.e. p. 129. 



I have already published the synonymy of Careman amabile 

 with Conopterimn riverince, and am now convinced, after com- 

 parison of specimens in my possession with those in the Macleay 

 Museum, that C. violaceum and C. ba-niardi are also merely 

 synonyms of this species. After comjjaring my specimens with 

 the description of C. insigne (the size of which is not stated) I feel 

 no doubt but that it is also conspecific with C. riverince. 



I 



