368 ON THE CARENIDES (FAM. CARABID.V), No. IV., 



C. devastator, Cast., the largest species of Carenum, is unknown 

 to me in nature. The description seems that of a species which 

 should be placed in my Division " ii.," and leads me to suppose 

 that it is a species with the prothorax of Carenidium, and elytra 

 resembling those of C. regulare. No mention is made of the 

 anterior tibiae, but I should expect them to be bidentate. 



C. nitescens, Macl., is unknown to me in nature, but the descrip- 

 tion gives ample evidence that it is not allied to C. marginatum. 

 The elongate shape of the elytra indicates that their inflexed 

 margins will prove to be narrow, and suggests that its place is near 

 to C. subplanatum. 



Carenum pusillum, Macl. 



A careful examination of specimens sent to me by Mr. Fi^ench 

 labelled " Cape York," which I identify as C. pusillum, Macl., 

 shows this to be an isolated species which cannot be placed in any 

 of the groups into which I have divided Carenum; its affinity 

 seems rather towards Laccopterum cyaneum, Fabr., (also a species 

 of doubtful position), than to any other described species. T,t 

 requires a separate group, but as I am not prepared to suggest its 

 relative position towards the other groups, it has not been 

 worked into my table. The following description gives some 

 features not alluded to in the original description : — 



Head resembling that of Laccopterum cyaneum, Fabr., but the 

 eyes much more convex; labrum truncate; suborbital antennal 

 scrobes single, short, wide; penultimate joint of labial palpi stout, 

 not swollen, shorter than apical joint; this as in L. cyaneum — not 

 nearly so widely securiform as in C. quadripunctatum, C. bonellii, or 

 Eutoma. Prothorax transverse, truncate at apex (anterior angles 

 not advanced), rounded on sides and at posterior angles, widely 

 sublobate in middle of base, tripunctate in lateral channels, 

 narrowly bordered. Elytra suboval, widest before middle, rounded 

 on sides, quadripunctate; base truncate, quadripunctate on each 

 side; border narrow (not thick as in Eutoma), thickened and 

 shortly upturned at humeral angles; inflexed margins of medium 

 width, becoming narrower to apex. Anterior tibiae strongly 



