1895 PROCEEDINGS OF THE NATIONAL MUSEUM. 4:21 



porrect, upper lamella' very slender, three times as loug as broad, of 

 an e(jual length with mediaii ones; lilameut yellow, free, very broad 

 at base, suddenly narrowed to less than half its width at the first third 

 of its under side, then gradually tapering to the ai)ex, not tiexuous. 

 Legs slender, simple, thickly but very short pilose; front metatarsi 

 noticeably more slender than the middle ones, hind metatarsi twice as 

 thick but scarcely longer than the middle ones. Wings grayish, stigma 

 pale brownish, veins normal, brown, last section of flfth vein longer 

 than the i^enultimate section. 



FemaJe. — Same as the male, except front and middle metatarsi snb- 

 equal in size, the hind ones nearly twice as thick as, and slightly longer 

 than, the others. 



j_^y;^-._No. 3212 and 3213, TT.S.N.M.: length, 1 mm. A single male 

 and female in the Museum collection. 



Local if;/. — Texas. 



RHAMPHOMYIA EFFERA, new species. 



Female. — Head black, gray polliuosej antennae black, first two joints 

 brown, the third lanceolate; style one-fourth as long as the third joint; 

 proboscis slightly longer than height of head, palpi brown. Thorax, 

 pleura, and seutellum black, gray pollinose, snbshining, pile and bris- 

 tles of thorax mostly black, pile in front of halteres whitish; seutellum 

 bearing four bristles. Abdomen brown, subshining, tapering behind, 

 its pile yellowish. Legs slender, dark brown, base of femora and the 

 coxai lighter, more brownish yellow; under sides of middle and hind 

 femora ciliate with nearly erect scales, the upper sides ciliate with 

 short seta^; metatarsi of nearly an equal thickness and length. Knob 

 of halteres pale yellow. Wings brownish gray, stigma darker, veins 

 brown, fourth vein entire. 



Ty2)e.—^o. 3214, U.S.KM.: one fenuile; length, 4 mm. 



RHAMPHOMYIA MANCA, new species. 



Male. — Head black, bluish-gray pollinose; eyes contiguous, upper 

 facets not larger than the lower; autenn;e black, third joint broadly 

 lanceolate, style one-fifth as long as the third joint; proboscis somewhat 

 longer than height of head. Thorax, pleura, seutellum, and abdomen 

 black, ojtaque bluish-gray pollinose, the pile and bristles whitish; seu- 

 tellum bearing only two bristles; hypopygium large, ascending, the 

 filament hidden. Legs simple, very dark brown, tarsi white except 

 the hist two ov three joints and the front metatarsi; front and hind 

 metatarsi subecpial in size, slightly thicker than the middle ones, not 

 one-half as long as their tibiic. Knob of halteres light yeHow. Wings 

 whitish, veins concolorous, except the costa beyond apex of lirst vein; 

 last fourth of ultimate section of the fourth vein obliterated before 

 reaching the wing margin; stigma wanting. 



