6 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 74 



Abdomen with rather dense and erect hair, rather flat toward the 

 base with thin brownish pollen when viewed from behind on which 

 is the beginnin*^ of a median dark line. Front tibia without outer 

 flexor bristle, middle tibia with two bristles behind, the upper at 

 the middle, hind tibia with a very distinct calcar below the middle, 

 and on the outer flexor side two bristles below the middle. Middle 

 femur with about a dozen truncated bristles on the under side near 

 base, on the hind side with a dense slanting row of small bristles 

 extending the whole length. Hind femur on the outer side with a 

 distinct row of bristles the whole length, becoming more dorsal 

 toward the tip, also two or three stubby truncate bristles near base 

 on under side and a partial row of bristles on the outer flexor side 

 beyond middle. Claws and pulvilli short. Wings rather narrow 

 evenly infuscated. 



Length, 6.4 mm. 



Described from one male, Sao Paulo, Brazil, Dr. A. Lutz. 



OPHYRA VILLOSA, new species 



Shining blue green with black legs, antennae and palpi. Wings 

 hyaline. Calypters white. Hind tibia with long villosity. 



Male. — Front nearly as wide as ocellar triangle, the shining black 

 distinctly punctured para f rentals separated by the median stripe 

 which at narrowest is as wide as one parafrontal. The frontal 

 bristles begin just above the middle of the space between the ocelli 

 and lunule, the latter silvery, very conspicuous. Parafacials nar- 

 row with dull gray pollen which extends across the face. Cheek 

 about one-tenth the eyeheight. Hind edge of eye distinctly emargi- 

 nate along the middle. Mesonotum with rather dense erect hairs, 

 entirely shining. Before the suture there are about four rows of 

 delicate rather long acrostichal hairs, but the remaining surface is 

 so hairy that they are difficult to distinguish. Dorsocentral bristles 

 more or less hair-like except the hindmost pair. Anterior sterno- 

 pleural very minute or absent, the calypters white with white rim 

 and fringe, the hind one projecting considerabl}^ but not so long as 

 in O. ciitilia. Halteres black the stem yellow toward base. 



Abdomen wholly shining with long erect pile except in the middle 

 of tlie dorsum. Logs black, claws and pluvilli not elongated; front 

 tibia without a bristle on the outer flexor side. Middle tibia with 

 two bristles on hind side. Hind tibia with long, erect, but not dense 

 villous hairs or bristles in two rows on the outer and inner flexor 

 sides, the intervening space with few hairs. Wings hyaline, third and 

 fourth veins very slightly convergent. 



Length, 4.2 to 4.6 mm. 



