406 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 95 
claws similar on all feet, cleft near middle, inner tooth of each 
slightly shorter than outer one, turned inward and nearly touching 
tooth on opposite side. 
Length 5.5-6.2 mm., width 1-1.2 mm. 
Female-—Unknown. 
Type locality—Mundo Nuevo, Trinidad, British West Indies. 
Type and paratype—vU. 8. N. M. No. 56869. Paratype returned to 
Mr. Callan. 
femarks.—Described from three males (one type) collected at the 
type locality, April 4, 1948, in the cells of a sphecoid wasp (Cerceris 
sp.) by E. McC. Callan. 
AGRILUS CAPTIVUS, new species 
Female.—Elongate, slender, subopaque; head and anterior margin of 
pronotum reddish cupreous; posterior part of pronotum blackish 
green, strongly shining; scutellum black; elytra olive-green anteriorly, 
becoming bluish black posteriorly ; body beneath more strongly shining 
than above, black, with a slight bronzy tinge. 
Head with front wide, convex, slightly wider at top than at bot- 
tom, vaguely, broadly flattened behind clypeus, without a median 
depression; sides parallel posteriorly, feebly converging toward bot- 
tom; surface finely, densely granulose, rather coarsely, irregularly, 
transversely rugose, indistinctly punctate between rugae, with a few 
short, recumbent, white hairs behind clypeus; clypeus narrow between 
antennae, broadly, rather deeply, arcuately emarginate in front; 
antenna extending slightly beyond anterior margin of pronotum, ser- 
rate from fifth segment. 
Pronotum distinctly wider than long, subequal in width at apex 
and base, widest near apical third; sides broadly rounded anteriorly, — 
parallel near posterior angles, which are rectangular; marginal and 
submarginal carinae sinuate, widely separated anteriorly, united near 
basal third; anterior margin strongly sinuate, median lobe strongly 
produced and broadly rounded; base arcuately emarginate on each side; 
median lobe arcuately emarginate in front of scutellum; prehumeral 
carinae rather strongly elevated, arcuate, extending forward from 
posterior angles to near middle of pronotum, but not united to mar- 
ginal carinae; disk convex, deeply depressed on each side, broadly, 
transversely depressed in front of scutellum, without a median depres- 
sion; surface coarsely, irregularly, transversely rugose, indistinctly 
punctate between rugae, with a spot of dense, recumbent, white hairs 
near apical angles. Scutellum strongly, transversely carinate. 
Elytra broadly, shallowly constricted at middle, slightly depressed 
along sutural margins, tips separately broadly rounded and finely den- 
tate; surface finely, densely imbricate-punctate, rather densely, uni- 
formly clothed with short, recumbent, scalelike, white hairs. 
