102 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



disk moderately convex, with two broad, shallow, median depres- 

 sions placed longitudinally, the anterior one being slightly deeper, 

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

 without distinct prehumeral carinae; surface coarsely, deeply, irregu- 

 larly rugose, finely, sparsely punctate between the rugae, and clothed 

 with a few long hairs in the depressions. Scutellum not transversely 

 carinate, but the surface coarsely rugose. 



Elytra wider than pronotum at base, and distinctly wider at base 

 than behind middle ; side feebly rounded for a short distance behind 

 base, strongly, broadly constricted in front of middle, feebly, arcu- 

 ately expanded behind middle, then obliquely narrowed to the tips, 

 which are separately, broadly rounded, and feebly serrulate; sides 

 of abdomen broadly exposed above; disk feebly flattened, with broad, 

 moderately deep basal depressions; surface densely, coarsely granu- 

 late-muricate, transversely rugose toward the sides, and with a vague 

 vitta of short, whitish hairs, extending along suture from basal de- 

 pression to apex. 



Abdomen beneath coarsely, densely punctate, the punctures con- 

 nected transversely by coarse, sinuate lines, and densely clothed at 

 the sides with short, recumbent, silvery white pubescence, which ex- 

 tends narrowly along anterior margin of segments to middle; first 

 segment convex at middle; last segment broadly rounded at apex; 

 suture between first and second segments distinct at the sides ; vertical 

 portions of segments not conspicuously pubescent ; pygidium densely 

 punctate, strongly carinate, the carina not projecting, but the apex 

 of the pygidium acutely angulated. Prosternum obsoletely granu- 

 lose, coarsely punctate, more or less rugose, and sparsely clothed with 

 moderately long, recumbent, whitish hairs; prosternal lobe broad, 

 strongly declivous, and broadly but not deeply, arcuately emarginate 

 in front; prosternal process broad, arcuately declivous toward apex, 

 the sides nearly parallel to behind coxal cavities, then obliquely nar- 

 rowed to the apex, which is acute. Tibiae slender, and without a 

 tooth at apex. Posterior tarsi about one-half as long as tibiae, and 

 the first joint as long as the following two joints united. Tarsal 

 claws similar on all feet, cleft near the middle, the inner tooth slightly 

 shorter than outer one, and not turned inward. 



Length, 9.5 mm.; width, 2.5 mm. 



Male. — Differs from the female in having the front of head 

 golden green, with a feeble cupreous tinge; antennae extending 

 nearly to middle of pronotum; abdomen beneath cupreous, aeneous 

 or greenish, with the sides sometimes blackish, and the surface more 

 coarsely punctate; anterior and middle tibiae armed with a distinct 

 tooth on inner margin at apex, and the tarsal claws similar on all 

 feet, cleft near the tip, the teeth nearly equal in length, and not 

 turned inward at the tip. 



