470 A SECOND NOTE ON THE CARENIDES, 



abrupt ; two or three punctures, in a row, on internal half of base 

 of each elytron ; a row of fine punctures along lateral margins ; 

 suture forming a deeply impressed channel ; inflexed margin very 

 wide. Prosternum widely channelled between the coxae, with two 

 setigerous punctures on each side near inner margin of coxae. Four 

 posterior legs light ; anterior tibiae not wide at apex, pluridendate 

 externally ; the three anterior teeth very strong, those above them 

 (four) smaller but prominent ; inferior ridge strongly and closely 

 serrate, extending along whole length of under side of tibiae ; 

 apical plate narrow, with an acute piojectiou from apex below 

 tarsus ; intermediate tibiae ciliate, without an external spur at 

 apex. 



Length 25, breadth 9*6 mm. 



Hah. — MacDonnell Ranges, Central Australia. 



For the single specimen in my collection I am indebted to C. 

 French, Esq. 



The affinity of this species is evidently towards C. rectangulare^ 

 MacL, but it is very distinct from, and has apparently but little 

 resemblance to, that species. 



Carenum iridescens, n.sp. 



Elliptic-oval, convex, smooth, shining ; elytra bipunctate with 

 wide inflexed margins and weakly developed humeral projections ; 

 legs light, anterior tibiae tridentate. 



Head, under surface and legs black ; prothorax widely margined 

 with green, the disc black ; elytra metallic green with bluish 

 reflections becoming dark blue near suture, inflexed margins 

 greenish-black. Head subquadrate (3*3 x 5-1 mm.), smooth ; 

 frontal sulci short, straight and lightly divergent backwards, 

 curving outwards in front in a lightly marked course ; pre-ocular 

 sulcus wide, shallow; pre-ocular prominence prominent; eyes 

 convex, not prominent ; one supra-orbital puncture on each side. 

 Antennae slender, lightly compressed ; apical joint subfusiform. 

 Prothorax transverse (4 x 6 "6 mm.), convex, rounded on sides ; 

 anterior margin truncate ; anterior angles shortly and obtusely 

 advanced; posterior angles rounded ofl"; base shortly and narrowly 



