124 Proceedings of the Biological Societg of Washington. 
tlie tip, wliitinli ])nbe.sceiit. Rcntnin niiifornily black; vestiture of briglit 
nietallic green, hair-like scales disposed in little groups which form indis¬ 
tinct longitudinal series. Scutelluin black, moderately broad, bluntly 
subtriangular, the scales like those on the mesonotum, but longer and 
lying transversely. Fleurie black. , Abdomen black throughout, some¬ 
what shining, rather narrow, without marked folds. Legs slender, largely 
ochraceous; anterior pair with the coxa, femur and til)ia yellowish, the 
latter infuscated towards the tip, the tarsi blackish, the first joint luteous 
on the basal half and dilated towards the apex; median pair with the 
coxa blackish, the femur, tibia and first three tarsals yellowish, the last 
two tarsals blackish; hind legs with the coxa black, the femur dark, 
broadly luteous at base, tibia yellowish white basally, blackish beyond 
the middle, tarsi with the first three joints yellowish, darkened along 
under side, the last two all dark. Claws unarmed, with obtuse basal 
thickening. Wings hyaline, broad, the venation normal, the thick veins 
yellowish; posterior iridescent spot diffused, nearly obsolete, with yellow¬ 
ish luster. Halteres with dark base and large creamy yellow knob. 
Length: body about 1.2 mm., wing 2 mm. 
Santa Clara, Peru, LIUO feet, April, 1914, 2 specimens; Chosica, Peru, 
April, 1914, one specimen (C. IL T. Townsend). 
Type. —Cat. No. 18494, U. 8. Nat. IMus. (Santa Clara). 
Professor Townsend has noted that in this species the eyes are green 
during life. 
