400 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
a median green spot in front of scutellum; elytra greenish black, with a 
faint purplish reflection and a distinct bluish-green space behind 
scutellum; body beneath strongly shining, brown, with cupreous and 
greenish reflections in different lights. 
Head with front broad, subequal in width at top and bottom, with a 
deep, elongate depression in front of clypeus; sides nearly parallel, 
vaguely rounded at middle; surface densely, finely granulose, coarsely, 
rather densely punctate in front, vaguely, longitudinally costate on 
vertex and occiput, densely clothed with short, recumbent, white hairs 
in depression in front of clypeus; clypeus quadrate, rather wide be- 
tween antennae, deeply, rectangularly emarginate in front; antenna 
extending to near middle of pronotum, serrate from fourth segment. 
Pronotum wider than long, wider at apex than at base, widest along 
apical half; sides parallel anteriorly, vaguely converging posteriorly ; 
posterior angles rectangular; marginal and submarginal carinae 
slightly sinuate, rather widely separated anteriorly, united at basal 
fourth; anterior margin vaguely sinuate, without a distinct median 
lobe; base arcuately emarginate on each side, median lobe broadly 
subtruncate in front of scutellum; disk very uneven, broadly depressed 
along sides, broadly, transversely concave on basal half, with a shallow, 
elongate depression in front of scutellum, and a shallow, transverse, 
median depression behind anterior margin; prehumeral carinae 
strongly elevated, strongly arcuate at base, united to marginal carinae 
in front of middle; surface glabrous, densely, finely granulose, finely, 
irregularly, transversely rugose, finely indistinctly punctate between — 
rugae. Scutellum strongly, transversely carinate. 
Elytra broadly, shallowly constricted along middle, tips bidentate, 
outer tooth longer than inner one; surface flattened, depressed along 
sutural margins, finely, densely imbricate-punctate, uniformly clothed 
with very short, recumbent, inconspicuous hairs, and each elytron 
with an inconspicuous, elongate, white pubescent spot along sutural 
margin in front of middle, and an inconspicuous, white pubescent, 
sutural vitta on apical third. 
Abdomen broadly exposed above, strongly convex beneath; surface 
densely, finely granulose, finely, sparsely punctate posteriorly, trans- 
versely rugulose on basal segment, sparsely clothed with very short, 
inconspicuous hairs, with a transverse white pubescent fascia on each | 
side along suture between first and second visible sternites; vertical 
portions of first sternite clothed with reddish-brown pubescence, and — 
third, fourth, and fifth sternites with white pubescence; suture obsolete 
between first and second sternites; mesosternum and metasternum | 
densely clothed at sides with recumbent, reddish-brown pubescence. — 
Prosternum coarsely, shallowly punctate, sparsely clothed with recum- | 
bent, whitish hairs, with a median spot of short, erect hairs; prosternal 
lobe broadly, shallowly emarginate in front; prosternal process broad, 
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