PROCEEDINGS OF THE NATIONAL MUSEUM. 419 



and tibite light yellow, hind iemora iiinch thicker tlian the others, the 

 under side beset with stout black spines; tarsi yellowish, toward the 

 ai)ex brown; Iront and middle metatarsi of an equal size, the hind ones 

 much thicker and almost one-half longer than the others. Knob of 

 halteres yellowish. Wings l)roMniish gray, stigma brown, veins dark 

 brown, fourth vein entire. 



Female. — Same as the male, with these exceptions : Front and middle 

 femora darker, more brownish, tibiiB and tarsi browinsh. Wings 

 nearly uniform light brown. 



Types.— ^oii. 3191 and 319li, U.S.i^'.M.; length, 8 to 9 mm. Five 

 males and one female in the Museum collection. 



Locality. — Illinois, Texas, and New Mexico. 



RHAMPHOMYIA LORIPEDIS, new species. 



Male.— ^liead black, eyes broadly separated, the interval nearly as 

 broad as the face; antennae black, first joint twice as long as the sec- 

 ond, third joint three times as long as the first, tapering quite rapidly 

 to the middle, then of nearly an equal Avidth; style one-fourth as long- 

 as the third joint; proboscis one and a half times as long as height of 

 head, palpi yellow. Thorax black, subshining, lightly gray i)ollinose, 

 the sparse pile and bristles black; pleura black, gray pollinose, pile in 

 front of halteres white. Scutellum black, bearing four bristles. Abdo- 

 men shining blackish brown, its pile long and rather abundant, white; 

 hypopygium ratlier snmll, ascending; filament free, very thick on basal 

 half, then abruptly becoming slender and bowed downward in the form 

 of a U, the outer prong of which is prolonged and slightly undulating. 

 Legs yellow, coxa^ largely black, hind femora toward the apices, hind 

 tibiic except at bases, and apices of tarsal joints, brown ; hind femora 

 considerably swollen before the apices and ou the under side of the 

 apical third bearing stout black bristles; hind tibijTe greatly thickened 

 toward the apices, and on the inner side near the base is a large swelling 

 bearing short black bristles; below this swelling the tibia bends forward 

 and slightly outward; front metatarsi slightly thicker than the middle 

 ones, hind metatarsi slightly thicker but not longer than the front ones. 

 Halteres yellowish white. Wings hyaline, stigma aiul veins brownish, 

 fourth vein entire. 



Female. — Same as the male, with these exceptions: Venter yellow on 

 the filth and sixth segments, sometimes a yellow spot on sides of the 

 third and fourth. Hind femora scarcely thickened, tibia) destitute of a 

 swelling near the base; front metatarsi somewhat thicker than the 

 hind ones. 



Ty2)es. — Nos. 3193 and 3194, U.S.ISr.M.; length, 4 to 5 mm. Two males 

 and three females, collected by the writer in jNIarch and April. 



Locality. — Southern California. 



