428 THE yOBTH AMERICAN EMPIDJE—COQUILLETT. vol.xmii. 



FcnuiJi'. — Differs from the male as follows: Abdomen very dark 

 browuish, uot gray ])olliiiose, siibshiiiiug-, taperiug posteriorly. Tarsi 

 brown, base of metatarsi yellowish. 



Types.— Noa. 31^15 and 3210, U.S.N.M.; length, 2i mm. Three males 

 and one female in the Mnsenm collection. 



Locality. — North Carolina. 



RHAMPHOMYIA VALGA, new species. 



Male. — Head black, gra}^ pollinose, eyes contiguons, npjjer facets 

 larger than the lower ones; antenuiii dark brown, second Joint lighter, 

 the third rather broad, lanceolate; style one-fonrth as long as the third 

 Joint; proboscis slightly longer than height of head, palpi dark brown. 

 Thorax, plenra, and scntellum black, opacpie bluish-gray pollinose, the 

 sparse pile and bristles black; scatellnm bearing two bristles. Abdo- 

 men black, the basal half mottled yellow and brown, snbshining, com- 

 ]nessed, its pile rather abundant and long, black; hypopygium small, 

 ascending, the ui)per lamellai very small and not swollen; central 

 lilament yellow, thick, arcuate, free except at apex; venter yellowish 

 on basal half. Legs brown, extreme base of each tibia yellow; coxie 

 ■dark yellow; hind femora much thickened toward the apices, the under- 

 side of each Just before the tip bearing a rather large rounded ])rocess; 

 near its base each hind tibia is hollowed out at a point opposite the 

 process in the femur, so that when the legs are folded up the femoral 

 process tits into the hollow in the tibia; the outer edge of this hollow 

 is not fringed with seta'. Front metatarsi slightly thicker and longer 

 than the middle ones, hind metatarsi considerably thicker but no longer 

 than the front ones. Knob of halteres dark yellow. Wings liyaline, 

 stigma obsolete, veins brown, fourth vein entire. 



7)/^,<.._Xo. 3217,U.S.N.M.; one nude: length, 4 mm. 



Loca I ity. — New Ham psh i re. 



RHAMPHOMYIA CILIATA, new species. 



^[ale. — Head black, face shining, eyes contiguous: antenn.e black, 

 third Joint sublanceolate, style nearlj^ one-third as long as the third 

 Joint; proboscis shorter than height of head, paljii black. Thorax and 

 scntellum shining black and <lestitute of ])()l]en, pleura and metanotum 

 blackish, opaijue gray pollinose; scntellum bearing only two bristles; 

 sparse pile and bristles of thorax, jjleura, and scntellum light yellowish. 

 Abdomen shining dark brown, its sparse pile whitish; hypopygium 

 simill, ascending, central hlameut hidden. Legs simjde, very dark 

 brown, including the tarsi, extreme leases of tibia' yellowish; front meta- 

 tarsi slightly thicker but shorter than the middle ones, hind metatarsi 

 much thi(;ker and longer than the others; lower sides of front meta- 

 tarsi, of middle femora, and inner sides of middle tibia^ ciliate with 

 short black set.e; on outer side of each middle tibia, near its middle 

 ami also near its tij), is a very long bristle. Knob of halteres dull yel- 

 lowish. AVings hyaline, veins and stigma brownish, fourth vein entire. 



