112 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



epistoma, the groove broadly and rather deeply depressed on the 

 vertex and occiput ; surface coarsely, densely punctate, the punctures 

 more or less transversely confluent, and rather densely clothed on 

 lower half with moderately long, recumbent, golden yellow pubes- 

 cence; epistoma narrow, not transverse between the antennae, and 

 broadly, arcuately emarginate in front; antennae extending to middle 

 of pronotum, serrate from the fourth joint, and the outer joints 

 slightly longer than wide; eyes large, narrowly oblong, and about 

 equally rounded above and beneath. 



Pronotum one-half wider than long, base and apex about equal 

 in width, and widest just behind the middle; sides strongly, arcuately 

 expanded from apical angles to just behind the middle, then arcuately 

 narrowed to the posterior angles, which are rectangular; when viewed 

 from the side the marginal and submarginal carinae are strongly 

 sinuate, widely separated anteriorly, and connected to each other 

 near the base; anterior margin feebly sinuate, with the median lobe 

 broadly, vaguely rounded; base arcuately emarginate at middle of 

 each elytron, the median lobe very broadly rounded, and subtruncate 

 in front of scutellum; disk moderately convex, with a broad, mod- 

 erately deep, median depression extending from base to near anterior 

 margin, a broad, shallow depression on each side along the lateral 

 margin, and without prehumeral carinae; surface densely, coarsely 

 but not deeply, transversely rugose, finely punctate between the 

 rugae, sparsely clothed with inconspicuous hairs on the median part, 

 but densely, broadly clothed at the sides with moderately long, re- 

 cumbent, golden yellow pubescence, which conceals the surface. 

 Scutellum rather strongly, transversely carinate, and the surface 

 obsoletely reticulate. 



Elytra slightly wider than pronotum at base, and distinctly wider 

 at base than at apical third; sides feebly arcuately rounded for a 

 short distance behind base, broadly constricted in front of middle, 

 broadly, arcuately expanded at aj)ical third, then obliquely narrowed 

 to the tips, which are separately, rather broadly rounded, and 

 coarsely serrulate; sides of abdomen broadly exposed above; disk 

 rather strongly flattened above, and without longitudinal costae, the 

 sutural margins slightly elevated posteriorly, and with broad, mod- 

 erately deep, basal depressions; surface densely coarsely imbricate- 

 punctate, sparsely clothed with short, inconspicuous hairs, which are 

 more distinct along sutural margins at apical fourth, and each elytron 

 ornamented with three small golden yellow pubescent spots, one in 

 basal depression, one in front of middle, and the other one near the 

 apical fourth. 



Abdomen beneath finely, sparsely punctate at middle, becoming 

 densely punctate toward the sides, sparsely clothed with short, recum- 



