fey T. G. SLOAiJE. 625 



depressed, the depressed area more sharply defined, apical 

 mucrones more strongly developed. 



Carenidium pektenue, n.sp. 



Very long, parallel, cylindrical, disc of elytra depressed. Elytra 

 impunctate, indexed margins very narrow. Head and under- 

 surface black; prothorax black, with bluish-green margins; elytra 

 violaceous, with viridescent reflections along sides. 



Head large, as long as broad (4"2 x 4*2 mm.), convex, lightly 

 narrowed behind eyes; frontal sulci long, narrow, deep, diverging 

 lightly backwards; mandibles stout, right with upper margin 

 arcuate; labrum emarginate; intermediate angles of clypeus 

 short, prominent, triangular; preocular sulcus wide, shallow; 

 eyes deeply set in orbits, depressed; jostocular part of orbits as 

 long as eye, not prominent, gently raised from neck; two supra- 

 orbital punctures on each side. Prothorax not wider than head, 

 longer than broad (4-6 x 4-15 mm.), not declivous to base; a wide 

 lightly depressed marginal channel across base; sides parallel, 

 widely rounded at posterior angles, shortly sinuate before base, 

 apex truncate; border very narro.w, slightly advanced at anterior 

 angles, thick on base; median line finely marked. Elytra more 

 than twice as long as broad (11 x 4'3 mm.), parallel on sides, 

 declivous to peduncle; apex obtusely pointed; border very nar- 

 row, not dentate at shoulders; a few punctures on each side of 

 base. Anterior tibiae 2-dentate. Length, 21; breadth, 4-3mm. 



Hab.—W.A. : Cue (Brown). Type in Coll. Sloane. 



This is proportionally the most slender Carenum known, being 

 narrower in proportion to its length than any of the species of 

 Teratidium. It is allitd to C. frenchi SI., from which it differs, 

 apart from colour, by head longer, with eyes and orbits less pro- 

 minent; prothorax longer, more parallel; elytra longer, more 

 depressed on disc. 



Carenidium frenchi, n.sp. 



(J.Long, narrovv, cylindrical. Htad very large, mandibles 

 very stout, right mandible with upper edge strongly raised into 

 an obtuse prominence near base, labrum and clypeus (in middle) 



