BY THOMAS G. SLOAXE 451 



A distinct species; its small size and the large fo%ete of the 

 third interstice of the elytra are among its most marked characters. 



H E L L u o X I X I. 



Lestiaxthus, n.gen. 



Head constricted posteriorly to a short wide neck ; \ertex and 

 front strongly punctate ; some long hairs behind each eye. 



Mandibles stout, short, pointed but hardly hooked at apex. 



Maxilke with inner lobe falcate, strongly bent inwards towards 

 apex and acutely pointed ; inner margin fringed (not thickly) 

 with strong bristles ; outer lobe Inarticulate. 



Labriuii truncate, sexsetose. 



Labium small, triangular, coriaceous ; ligula bisetose, the setie 

 strong, short, placed near each anterior angle ; paraglossa* large, 

 connected behind, truncate in front, hardly advanced before ligula, 

 each equalling ligula in width on anterior margin. 



Me)Uiciii deeply emarginate, without a median tooth. 



I'a^jn : maxillary with penultimate joint short, conical ; the 

 apical joint long, elliptical, thick, obtuse, rather more than a half 

 longer than penultimate : labial with penultimate joint bisetose ; 

 apical joint large, very widely securiform. 



Ante7in(h short, thick, subfiliform, lightly incrassate ; all the 

 joints setose ; the three basal ones more sparsely so ; four basal 

 joints cylindrical ; seven succeeding ones a little compressed, 

 subequal ; first joint hardly as long as two succeeding ones 

 together, having a puncture in front on apical third bearing a 

 long strong seta ; second joint a little shorter than third, thickened 

 at apex ; apical joint a little longer than penultimate. 



Protliorux not much broader than long, convex, punctate ; a 

 very prominent, acute angular projection on each side a little 

 l)efore the base. 



Elytra connate, aliljreviated at apex, striate ; the interstices 

 depressed, punctulate ; a few scattered seta? towai'ds sides and 

 1 )ase. 



Prosterrmm jjunctate, narrow, not impressed between coxfe. 



