144 NOTES ON AUSTRALIAN COLEOPTERA, 



triangular humps; the foliaceous sides obliquely striolated across 

 the anterior angles. Elytra wider than prothorax, slightly- 

 convex, broad at the base, sides slightly dilating towards the 

 apical third, abruptly declivous behind; a triangular depression 

 behind the scutellum; shoulders widely rounded, with unusually 

 strongly reflexed epipleural fold; with four shining carinate costae 

 on each elytron; of these the first and fourth connected near the 

 apex, the second and third not connected, the second shorter 

 than the third apically, and the third and fourth not reaching 

 the base; between these (one outside) are five slightly convex 

 intervals of a dull black becoming subobsolete towards the apex, 

 entirely impunctate; the suture also itself shining and bicostate, 

 though less raised than the four costse mentioned above. Epi- 

 pleurcB subconvex with an evident central ridge. (N.B. — In C. 

 crenulicollis Bates, the epipleurse are concave, with a central 

 depressed line). Abdomen smooth and shining; femora trans- 

 versely striolate; tarsi and apex of tibise clothed with golden 

 hairs. Dime7isions — 20x7 '5 mm. 



J£ab. — Mount Garnet, North Queensland (sent by C. French, 

 Esq., F.L.S., of Melbourne). 



This interesting ally of C. crenulicollis Bates, may, at first sight, 

 be mistaken for an exaggerated variety of that species; but the 

 striking differences pointed out in the diagnosis are evidently 

 specific; e.^., the coarsely crenulated throughout, unrefiected edge 

 of the prothorax, the blunt and turned-back tip of the anterior 

 angle, the widely truncated posterior angular process, the two 

 triangular nodules on the anterior disc, the carinate-costate elytra 

 in strong contrast to the low, level, intermediate intervals, the 

 ridged epipleur?e, the more strongly widened prothorax, &c., &c. 

 Two examples were sent, both probably female, judging by the 

 comparative slightness of the femora. (The strong characters 

 described above are a sufficient justification for publishing a 

 description of the one sex, especially since its nearest ally, C. 

 crenulicollis^ shows little sexual differentiation). 



