346 PROCEEDINGS OF THE NATIONAL MUSEUM vol. os 



toward sides; area below carina transversely impressed, feebly shin- 

 ing, finely granulate, reticulate; hairs short, fine and very incon- 

 spicuous except on epistomal margin ; devoid of coarser bristles such 

 as in langstoni and quadrispinosus. Eye small, short oval, inner 

 margin entire, facets fine. Antenna of the usual Hylocurus type, with 

 short, twisted scape bearing a few moderate hairs, much longer 6-seg- 

 mented funicle and short oval club with two strongly setigerous 

 sutures, the first sinuate-arcuate, the second bisinuate. 



Pronotum 1.13 times as long as wide, widest near base, posterior 

 outline arcuate, posterior angles strongly rounded; sides subparallel 

 on posterior half, moderately broadly rounded in front, with anterior 

 margin weakly serrate; anterior area with numerous low, wide asperi- 

 ties ; summit moderately high ; with a broad, moderately deep, trans- 

 verse impression behind it; posterior area opaque to subopaque, 

 granulate-punctate, interstices distinctly reticulate ; hairs inconspicu- 

 ous except in transverse impression. 



Elytra slightly wider than pronotum and 1.37 times as long, 1.5 

 times as long as wide; sides subparallel on anterior two-thirds, broadly 

 rounded at posterior angles, with a prominent sutural apex; surface 

 moderately shining, strongly sculptured; striae strongly impressed on 

 disk, less impressed on sides, punctures coarse, deep, closely placed, 

 becoming deeper and larger posteriorly, often with fine hairs ; inter- 

 spaces moderately narrow, strongly rugose, becoming granulate- 

 tuberculate posteriorly, punctures small, numerous, each bearing a 

 stout, erect bristle, becoming longer and stouter toward declivity and 

 on sides. Declivity rather steep but rounded above and at sides; 

 suture flat, first and second striae nearly lacking, with punctures obso- 

 lescent; third, fifth, seventh, and ninth interspaces elevated and more 

 strongly granulate; face of declivity with small to moderately large 

 conical teeth as follows on each elytron: A small one near summit 

 opposite first stria, a row of three (sometimes two) in third interspace, 

 the uppermost small, the others progressively larger, a rather small 

 one in seventh interspace, and a row of several small and one large 

 tooth on ninth interspace; sutural apex prominent, densely, moder- 

 ately finely granulate, its sides making an angle of 90 degrees: vesti- 

 ture abundant, consisting of small hairs from striae and coarse bristles 

 from interspaces, more numerous and conspicuous than on disk. 



The male is unknown. 



This species, resembles langstoni in size and general proportions but 

 differs in many respects. It can immediately be distinguished by 

 the abundant elytral vestiture and by the absence of conspicuous vesti- 

 ture on the f rons as well as by numerous structural differences. There 

 is a greater similarity between this species and quadrispinosus, but the 

 latter is much smaller, is less rugged in sculpture, and also has rather 

 conspicuous frontal vestiture. 



