194 HYMENOPTERA. 
fuscous, with a slight metallic lustre; the first submarginal cell 
has an abbreviated line emanating from the stigma, the base of 
the second discoidal cell, and a larger irregular shape on the in- 
ferior wings, fulvo-hyaline. Abdomen of a bright prismatic blue, 
the apex thinly covered with long black hairs. 
Male.—Bears a close resemblance to the female ; the antennz 
porrect, entirely black; the anterior wing has a line emanating 
from the stigma, the anterior margin of the first submarginal 
cell, the apex of the externo-medial cell, and the entire first dis- 
coidal cell, obscure rufo- hyaline. 
Hab. Brazil (Santarem). (Coll. H. W. Bates.) 
17. PEpsIsS MUTABILIS. B.M. 
Pepsis mutabilis, St. Farg. Hym. ii. 483. 23. 
Hab. Brazil. 
18. PEpsIS NITIDA. 
Pepsis nitida, St. Farg. Hym. ini. 176. 12. 
Hab. Brazil (Minas Geraes). 
19. Pepsis PURPURASCENS. B.M. 
Female. Length 9 lines.—Black, adorned with changeable 
rich purple pile; the antennz have the scape rufo-piceous in 
front, the flagellum fuscous above, rufo-fulvous beneath, the first 
and second joints fuscous beneath; the labrum, mandibles in 
the middle, and the palpi rufo-testaceous ; metathorax elongate, 
transversely striate and channeled down the centre ; the sides of 
the scutellum and base of the metathorax exhibiting in certain 
lights a golden effulgence ; wings rufo-fuscous, their extreme 
apex hyaline; the legs have a rich purple iridescence, with a 
golden reflection in certain lights. Abdomen subpetiolate, 
bright purple, the apical margins of the segments obscurely rufo- 
piceous. 
Hab. Brazil (Santarem). (Coll. H. W. Bates.) 
20, PEPSIS SELADONICA. B.M. 
Pepsis seladonica, Dahlb. Hym. Europ. i. 120.42. 
Pepsis virescens, Si. Farg. Hym. iu. 484. 24. 
Hab. Brazil. 
