1895. PROCEEDINGS OF THE NATIONAL MUSEUM. 435 



its basal third. Coxii? black, femora and tibiae dark brown, tarsi black j 

 legs simple, abundant long black i)ilose, front metatarsi distinctly 

 thicker but not longer than the middle ones, hind metatarsi much 

 thicker and one-third longer than the front ones. Halteres brownish 

 yellow. Wings uniformly dark brown, fourth vein entire. 



Tij2}e. — No. 3235, U.S.N.M. ; length, 8 mm. A single specimen received 

 from Prof. 11. E. Weed, after whom the species is named. 



Locality. — Mississippi. 



Genus MEGH YPERUS, Loew. 

 MEGHYPERUS OCCIDENS, new species. 



Male. — Black in all its parts, including the ante*iinae, proboscis, palpi, 

 haltereSj and legs; eyes contiguous, third anteunal joint conical, slightly 

 longer than wide, the arista two-thirds as long as the third joint; pro- 

 boscis horizontal, nearly as long as height of head. Thorax subshin- 

 ing, lightly gray pollinose, that on the pleura more dense; scutellum 

 bearing six black bristles. Abdomen opaque velvet black, its pile 

 whitish; venter gray pollinose, hypopygium small, ])orrect, slightly 

 longer than the seventh segment". Legs rather robust, destitute of 

 bristles; upiier sides of hind femora with a fringe of white pile, hind 

 femora somewhat broader' than any of the others, their tibiae greatly 

 dilated, widening from the base to the middle, then of nearly an equal 

 width to the apex, which is rounded, at its greatest width nearly twice 

 as wide as the hind femora; hind metatarsi nearly twice as thick as 

 any of the others. Wings hyaline, stigma and v^eins brown, anal cell 

 nearl}' as long as the second basal. 



Female. — Same as the male, excei)t that the eyes are broadly sepa- 

 rated, front shining, abdomen subshiuing, hind tibiie slightly narrower. 



Types.— No^. 323G and 3237, U.S.N.M.; length, 2 to 3 mm. Three 

 males and two females taken by the writer in Aj^ril and June. 



Locality. — Southern California. 



Genus LEPTOPEZA, Macquart. 



ANALYTICAL KEY TO THE SPECIES OF LEl^TOPEZA. 



Black, the palpi, greater portion of the legs, and the halteres yellowish; length, 



4 mm fiavipes. 



Yellowish, the head and greater portion of the ahdomen, blackish; length nearly 



4 mm compta. 



LEPTOPEZA COMPTA, new species. 



Female. — Head black, gray iiollinose, eyes contiguous; autennaj yel- 

 low, third joint elongate oval, twice as long as broad, the arista black 

 and nearly twice as long as the antenuic; i^roboscis and i)alpi yellow, 



