HYMENOPTERA. {49 
146. PompiLus &STIVUS. BM. 
Female. Length 8 lines.—Head and thorax densely clothed 
with short changeable pile reflecting shades of purple and blue ; 
the anterior margin of the clypeus rounded, smooth and shining ; 
the mandibles polished at their apex and armed with four acute 
teeth; wings dark fuscous, with a bright violet iridescence ; the 
legs have an obscure iridescence, the tibize have a few scattered 
spines, the anterior tarsi ciliated; the metathorax rounded, and 
having a central longitudinal impressed line. Abdomen blue, 
with purple iridescence, the apex thinly covered with black 
pubescence. 
Hab. Brazil (Para). (Coll. H. W. Bates.) 
147. PoMPILUS BITUBERCULATUS. B.M. 
Pompilus bituberculatus, Guér. Voy. Cog. Zool. pt. 2. p. 258. 
Hab. Brazil. 
148. PoMPILUS CHLOROSOMA. B.M. 
Female. Length 5 lines.—Metallic green, varied with coppery 
and blue shades: the femora and tibiz red, the extreme apex of 
the latter and the tarsi fuscous; the calcaria fuscous at the tips, 
the tarsi more or less red at their base; the face covered with a 
dense silvery pile; the entire insect has a thin changeable 
silvery pile, most dense on the prothorax, coxe, and sides 
of the metathorax, the latter having also a thin hoary pubes- 
cence, and a slightly impressed longitudinal line in the middle; 
wings hyaline, iridescent, the nervures fuscous, stigma black ; the 
tegule have their outer margins rufo-testaceous. Abdomen 
petiolate, the extreme apex rufo-piceous. 
Hab. Brazil (Para). (Coll. H. W. Bates.) 
149. PompiLus Cresus. B.M. 
Female. Length 15 lines.—Black, covered with rich golden 
pile; the antennz ferruginous, the scape and base of the first 
joint of the flagellum, fuscous; wings yellow, the nervures fer- 
ruginous, the apex of the superior wings pale; the coxe covered 
with golden pile, the femora, tibia and tarsi, black ; the meta- 
thorax black, rounded, and transversely rugose-striate, haying a 
central longitudinal impressed line. Abdomen subpetiolate. 
Hab. Brazil. 
