1290 STUDIES IN AUSTRALIAN ENTOMOLOGY, 



broadly emarginate, with a single oblique row of punctures on 

 each elytron ; the lateral margins broad, lightly reflexed on the 

 anterior half, but the upturned edge disappearing towards the 

 apex ; a row of fine punctures along the sides, these more closely 

 placed on the anterior half. The anterior tibiae with two very 

 strong external teeth, above which the exterior ridge has four 

 tooth-like projections visible from above, the inferior ridge is 

 closely serrate extending past the upper external tooth, the apical 

 plate projects in a short tooth below the tarsus ; the intermediate 

 tibise strong with a short acute tooth projecting outwards at the 

 apex. 



Length 49, breadth 20 mm. 



Hah. — McDonnell Ranges, Central Australia. 



In size this species almost equals E. Waterliousii, Macl., from 

 which it differs in its more elongate elytra, not bulged on the side 

 as in that species, and not nearly so deeply excavate at the base. 



A single specimen (^). 



Carenum (Calliscapterus) habitans, n.sp. 



Shining, elytra green, head, disc of prothorax, abdomen, and 

 legs black, the prothorax widely margined with green, the under 

 surface of the prothorax towards the sides, and the inflexed 

 margins of the elytra also green. Head large, subquadrate 

 (5 X Tj mm.), frontal sulci deep, converging in front, and turning 

 sharply out in a linear form to the outer base of the man- 

 dibles, a deeply marked puncture on each side in front of their 

 course behind the lateral teeth of the clypeus ; the occiput 

 marked with fine scratches ; one supra-orbital puncture on 

 each side. Prothorax very transverse, broader than the elytra"^ 

 (6J X lOJ mm.), rather convex, declivous behind, parallel on the 

 sides, a little narrowed to the anterior angles, these wide, rounded 



* The breadth of the prothorax as compared to the elytra varies in some 

 species of Carenum (for instance, Calliscapterus campestre, Macl.) ; this 

 difference I believe to be a sexual character. 



