1895. PUOCKKDIXaS OF THE X.tTfOXJL MUSEUM. 421 



joint; j)robo.scis onc-hnlf loiii^cr tli;iii liei<il!t of head, ])ali)i yellow. 

 Tliorax black; tbe lateral margins, humeri, and protliorax brown, 

 opaque, grayish-brown pollinose; its sparse pile and bristles black; 

 ])leura mottled yellowish and dark brown, a black spot above the middle 

 and hind coxa', pile of pleura black; scutellum black, grayish-brown 

 ])ollinose, bearing four bristles. Abdomen compressed, brown, lightly 

 white pollinose, subshining, its pile black; hyi)op}^gium very small, 

 central tilament hidden. Legs slender, simple, the femora and coxa; 

 liglit yellow, the tibia- and tarsi brownish ; front tibia- before the middle 

 on the inner sides dilated, and thickly ciliate on the apical two-thirds 

 with short black and brown seta'; front metatarsi considerably thicker 

 and somewhat longer than the middle ones; hind metatarsi thicker and 

 one-third longer than the front ones. Knob of halteres pale yellow. 

 Wings uniformly pale brown, veins and stigma dark brown, fourth vein 

 entire. 



Fciiudc. — Same as the male, with these exceptions: Abdomen de- 

 [>ressed, tapering behind, ui)per and under sides of the middle and 

 hind femora, outer and inner sides of the middle and hind tibite, and 

 inner sides of the front tibia', ciliate with nearly erect scales, most 

 developed on the hind legs; front tibiie not dilated within. 



2)/pes.—^os. 3197 and 31J)8, U.S.X.M'.; length, o to mm. Three 

 males and four females in the ^luseuju collection. 



Locality. — Texas. 



RHAMPHOMYIA ARCUATA, new species. 



Male. — Head black, gray jiollinose, eyes contiguous, npper facets 

 much larger than the lower ones; antenna- yellowish brown on the two 

 basal joints, the third black, rather broadly lanceolate; style one-third 

 as long as the thii-d joint; proboscis scarcely longer than height of 

 head, palpi dark brown. Thorax and scutellum black, shining, very 

 lightly pollinose, the pile aiid bristles j'ellowish; pleuia black, the pile 

 whitish; scutellum bearing four bristles, .\bdomcn brownish yellow, 

 compressed, shining, its pile sparse, yellowish white; hypo])ygium large, 

 ascending, upper lamella- large and swollen, the intermediate tapering 

 toward the apex, the lower side ratlier abundant long yellowish pilose; 

 filament free, very slender, not fractured nor tlexuous. Legs slender, 

 simple, light yellow including the coxie; last tarsal joint brown; front 

 metatarsi considerably thicker and longer than the middle ones, hind 

 metatarsi much thicker and one-fourth longer than the front ones. 

 Knob of halteres yellow. Wings hyaline, stigma obsolete, veins browu- 

 ish, fourth vein entire. 



Ti/i)(\—l^o. 3199, U.S.N.M.; one male; length, 3 mm. 



Localitij. — Massachusetts. 



