386 PKOCEEDINGS OF THE NATIONAL MUSEUM vol.88 



Pronotum 1.6 times as wide as long, widest one-fourth of distance 

 from base, which is broadly, strongly procurved, sides strongly arcu- 

 ate, greatly narrowed anteriorly; a weak transverse impression just 

 behind front margin, which is very broadly rounded, not sinuate 

 in middle; surface piceous, shining, finely and densely granulate- 

 punctate; at each side with two small groups (usually 2-4) of 

 minute, sharp, inconspicuous asperities, those of anterior group 

 (usually 2) slightly larger, one-fourth of distance from anterior 

 margin to base; surface partially concealed by numerous small re- 

 cumbent scales, some of them cinnamon-brown, some cinereous, the 

 latter forming a wide border at each side of disk, a narrow transverse 

 band on posterior margin, and a median stripe, broad at posterior 

 and anterior margins, and interrupted, or nearly so, midway; with 

 cinnamon-brown scales elsewhere, extending to anterior margin; 

 anterior margin with a dense fringe of longer, coarse, erect setae, 

 shorter and nearly lacking in middle. 



Elytra 1.17 times as long as wide, wider than pronotum; sides 

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

 behind, the apex broad and subtruncate; basal margins strongly ele- 

 vated near suture, gradually becoming lower from suture to fifth 

 interspace at each side; with distinct black crenulations, those near 

 suture arranged in an approximate quarter circle, the lateral ones 

 opposite the third and fourth interspaces, at each side and pro- 

 gressively lower; striae rather narrow, first two deeper, but all dis- 

 tinctly impressed, punctures moderately fine and close; interspaces 

 convex but appearing flat in unabraded specimens, rugose, very 

 finely punctured, with a few feebly developed granules on the disk; 

 surface masked by small recumbent scales, part of them cinnamon- 

 brown and others very light cinereous, the latter forming in the type 

 specimen a broad stripe in the sixth and seventh interspaces, a broad 

 transverse band just back of the middle, and a stripe involving most 

 of the sutural interspaces from the fascia to the apex; each inter- 

 space with a median row of short, suberect, brown, inconspicuous 

 setae, which are slightly longer on the declivity; each elytron with 

 a dense group of coarse, testaceous setae just posterior to the basal 

 crenulations. Declivity steep, broadly, shallowly impressed, sub- 

 sulcate in the sutural region, with a few small, blunt granules in the 

 third interspace above. 



Ventral surface sparsely clothed with nearly white, usually bifur- 

 cate scales anterior to third abdominal segment, those on third and 

 fourth segments mostly light brown, erect, and more numerous, many 

 bifurcate; fifth segment finely and closely punctured, pubescence 

 brown, erect. Foretibia (fig. 18, d) with 8 teeth on the outer margin. 



Male. — Similar in size and habitus to female; with antennal club 

 (fig. 17, e) larger and more slender, more than 2.5 times as long as 



