380 PROCEEDINGS OF THE NATIONAL MUSEUM vol.88- 



abundant and coarser. Eye scarcely 3 times as long as wide, finely .' 

 granulate, inner line sinuate. Antenna (fig. 17, b) with club com- ' 

 prising more than one-half of total length, 3 times as long as wide, , 

 with three straight, setigerous, annulate sutures, setae slender. 



Pronotum 1.53 times as wide as long, widest on posterior third; ; 

 base with broad, deep, bisinuate emargination ; sides strongly arcuate, , 

 constricted and transversely impressed just behind front margin, , 

 which is very broadly rounded, feebly sinuate in median area; sur- 

 face reddish brown, finely, closely granulate-punctate; with three 

 groups of rather long, sharp asperities at each side — anterior group, 

 usually 2, just behind anterior margin ; middle gi-oup, usually 2, back 

 of transverse impression; posterior group, usually 3, on the posterior 

 half; surface nearly concealed by small, stout scales, most of them 

 light cinereous, except for an admixture of fulvous ones on anterior 

 third of disk and extending baclrward at each side of posterior group 

 of asperities ; anterior margin with a fringe of coarse, moderately long 

 setae, shorter in the median line ; anterior row of fringe light cinere- 

 ous, those behind testaceous to fulvous. 



Elytra 1.2 times as long as wide, slightly wider than pronotum; 

 sides straight and subparallel on anterior two-thirds, broadly rounded 

 behind and strongly emarginate in median area; basal margins 

 strongly elevated in each elytron from suture to fourth stria; 

 each with six dark-brown teeth, the median three on each side 

 displaced posteriorly, and more or less fused in a crescent-shaped 

 row; striae narrow, moderately impressed except the first, punctures 

 moderately coarse and close; interspaces weakly convex on disk, 

 finely rugose punctate; surface on disk clothed with small, stout, 

 semierect, scalelike, cinereous setae, and in the middle of each inter- 

 space a row of longer, erect setae, not flattened but terete, becoming 

 much longer, coarser and blunt behind. Declivity originating just 

 behind middle, sloping, deeply, broadly sulcate between the third 

 interspaces, which are very strongly elevated, with both median and 

 lateral setae very coarse, terete, longer and erect, forming a high 

 ridge each side of sulcus; fifth, seventh, and ninth interspaces less 

 strongly elevated, also with long, coarse setae; sulcus with suture 

 slightly elevated; first striae impressed; second interspace narrow; 

 setae lacking or nearly so in interspaces 1 and 2. 



Ventral surface dark reddish brown, shining, sparsely clothed 

 with nearly white, bifurcate scales except on last three abdominal 

 segments; third and fourth segments with erect, fulvous, undivided 

 setae except at sides; last segment as long as third and fourth com- 

 bined, with erect, fulvous setae. Foretibia with 9-11 rather coarse 

 teeth on outer margin, occasionally'' with teeth more numerous 

 (fig. 18, a, h). 



