396 STUDIES IN AUSTRALIAN ENTOMOLOGY, 



Carenum frenchi, n.sp. 



Robust, elliptic-oval, Isevigate ; prothorax transversely sub- 

 quadrate, the posterior angles sti'ongly marked ; elytra oval, 

 convex, impunctate, inflexed margins wide ; aljdomen convex ; 

 anterior tibiae tridentate. 



Black, shining, prothorax and elytra with a narrow metallic 

 purple margin. Head smooth, subquadrate, transverse (5-3 x 

 8-1 mm.), convex across occiput ; front depressed, vertical on each 

 side above eyes ; frontal sulci deep, lightly divergent backwards, 

 turning outwards in front in a lightly marked linear course ; 

 clypeus truncate behind labrum with a short triangular projection 

 on each side ; pre-ocular sulcus short, deep, straight ; pre-ocular 

 process short, rounded externally ; eyes not prominent ; sub- 

 orbital channel single, deeply impressed posteriorly ; one supra- 

 orljital puncture on each side. INIentum deeply emarginate ; 

 median tooth strong, prominent, triangular, strongly keeled in 

 centre ; a deep fovea on each side of keel at base. Second joint 

 of antennae shorter than third. Prothorax widely transverse (6-5 

 X 11 mm.), lightly convex, lightly declivous to base; sides sub- 

 parallel, very lightly rounded ; anterior margin lightly emarginate ; 

 anterior angles lightly and obtusely advanced ; posterior angles 

 rounded, but prominent and strongly marked ; base short, bisin- 

 uate, roundly and widely produced backwards in the middle ; the 

 sinuosities on each side of the short basal lobe strong and wide ; 

 border widely reflexed on sides, very prominently so at posterior 

 angles, narrower on base ; marginal channel wide, narrowed at the 

 posterior sinuosities, obsolete in middle of base ; median line 

 strongly impressed ; basal declivity transversely striolate ; two 

 marginal punctures on each side as in C. marginatum. Elytra of 

 same breadth as prothorax, oval (16 x 11 mm.), truncate on base 

 between humeral angles, convex, strongly declivous to apex ; 

 sides subparallel (a little rounded in middle), rounded to shoulders ; 

 apex widely rounded ; border reflexed, turned back at each 

 humeral angle to form a short thick prominence ; margin wide, 

 most so (but not flat) on each side of apical curve ; a row of four 



