126 REVI3I0NAL NOTES ON AUSTRALIAN CAllAlilD.K, II., 



cc. Elytra with four discoiclal punctures C damtli, Macl. 



BB. Head lightly narrowed behind eyes; inflexed margins of elytra 

 rather narrow and but little reduced in width opposite third and 



fourth ventral segments C. septentrioiiale, Macl. 



AA. Elytra bimucronate at apex. 



f. Apical declivity of elytra without ante-apical tubercles 



C. nmcrondtum, Macl. 



ff. Apical declivity of each elytron with an ante-apical tubercle a little 



before the apical mucro C leai, SI. 



II. Labrum and median part of clypeus truncate; mandibles in $ when 

 closed forming a transverse ridge in front of labrum, in J the left 

 mandible bearing an erect horn (Coxoptekum, Chaudoir). 

 G. Prothorax broader than long. 



H. Elytra with inflexed margins wide, strongly and continuously 

 narrowed to apex. 



i. Prothorax roundly ampliate on sides, elytra impunctate 



C. tropicctle, Macl. 



ii. Prothorax narrower, sides very lightly rounded between marginal 



punctures; elytra 4-punctate on disc C. riverime, Macl. 



HH. Elytra with inflexed margins rather narrow and but little reduced 

 in width opposite third and fourth ventral segments, 

 j. Clypeus with intermediate angles normal; ) C. modestum, SI. 



elytra 4-punctate jC pinyuratnm, SI. 



jj. Clypeus with right intermediate angle of clypeus (in ^) developed 



into a strong erect horn; elytra impunctate... (7. hicornutum, Macl. 



GG. Prothorax longer than broad G. aberrans,S\. 



Notes. 



Carenidiuni sapvhirinum, Bates. — My former note on this 

 species* was founded on the male; Mr. French has since sent 

 me the female, which agrees better with the original description, 

 having the elytra convex. Length 29-32, breadth 9-5-11 mm. 

 Bates gave the size of his specimen as 12 lines, but I think Mr. 

 French's specimens must be referred to C. sapphirinum, for mere 

 size is too unimportant to rel}'^ on as a specific character in Careni- 

 dium; specimens of C. super'bum, Casteln., in my possession, 

 taken at Mulwala, N.S.W., vary in length from 26 to 32 mm., 

 and I have a specimen of the same species from near Grenfell 

 only 24 mm. in length. 



ffab.—^AY.A. : Shark's Bay (Canarvon; Jide French). 



* These Proceedings, xxv. 1900, p. 386. 



