BY THOMAS G. SLOANE. 443 



RHYTISTERXUS CARPENTAKIUS, n.sp. 



Elungate-o\al, sub-depressed ; prothorax transverse, quadrate- 

 cordate, sinuate on each side towards ])ase, wider across base than 

 apex ; elytra with five inner strite strongly impressed, the inter- 

 stices convex. 



Black, shLning ; tarsi, palpi and two basal joints of antenna- 

 reddish-piceous. Head moderate, smooth ; frontal impressions 

 short, deep, clearly defined, arcuate, strongly divergent backwards ; 

 clypeal suture strongly marked, clypeus strongly and evenly 

 declivous to labrum ; eyes convex. Prothorax short, transverse 

 {:]:] X 4-S mm.), widest a little before middle, lightly convex 

 anteriorly, depressed posteriorly ; disc faintly transversely 

 striolate ; sides rounded on anterior two-thirds, shortly narrowed 

 to antei'ior angles, lightly nan-owed behind, straightened to 

 meet the base almost at right angles ; anterior margin widely 

 emarginate ; base lightly sinuate, hardly emarginate across 

 pefluncle, sloping lightly forward on each side ; anterior angles 

 wide, very lightly advanced ; basal angles subrectangular, obtus-e 

 at summit, lateral border thick, lightly reflexed ; median line 

 lightly iiTipressed ; two lateral basal impressions placed in a wide 

 <lepression on each side ; the internal short, strongly marked ; 

 the external much shorter, equally impressed ; space between 

 internal basal impressions depressed but convex, that between 

 external impression and lateral margin convex and bearing at its 

 base the posterior marginal puncture. Elytra oblong, wider than 

 prothorax (10 x 6 mm.), subparallel on sides, lightly convex, a 

 little depressed on disc, strongly declivous to sides ; apical curve 

 widely l)ut decidedly sinuate on each side ; stria:' simj)le, five 

 inner ones strongly impressed, entire ; fifth lightly flexuous 

 towards base; sixth strongly impressed near apex, its course 

 plainly discernible and crenulate on basal two-thirds ; seventh 

 strongly impressed near apex, its course faintly discernible and 

 crenulate on Imsal two-thirds ; eighth strongly impressed ; five 

 inner interstices lightly convex (fifth less so than others), more 

 decidedly so and narrower on apical declivity, sixth, seventh and 



