348 A. L. MELANDER. 



the case in the Empidinse, and the proboscis of some of the species 

 at least, projects forward. 



Euthyneura buciiiator sp. nov. 

 FeiYi'ile. Leugtli 2.5 mm.— Shiuiiis black species with yellow legs. Face and 

 front broad, diverging, shining. Proboscis rigid, black, extending obliquely for- 

 ward, as long as the height of the head. Thorax bare, highly polished, includ- 

 ing the pleurse ; scutellum with six black bristles. Abdomen subshining, brown- 

 ish towards base. Coxae and legs yellow, simple, slender, the claws minute. 

 Halteres yellowish. Wings clear hyaline, veins yellow, no stigma, discal cell as 

 long as the second basal, its hind border as long as the outward continuation of 

 that vein, anal vein faint. 



One female ; Pennsylvania. The antennae are broken. This is 

 a typical Euthyneura: the five other new species conform less per- 

 fectly. 



Euthyneura aperta sp. nov. 



Male. Length 2.5 mm.— Slender black species, with yellowish legs. Head 

 large, eyes cotiguous, the upper facets large. Antennae inserted low, the sec- 

 ond joint broad lanceolate,' the style minute. Proboscis rigid, extending straight 

 forward, nearly as long as the head-height. Thorax sparsely pubescent, shin- 

 ing on the pleurse also; scutellum with six equally long bristles. Abdomen 

 slender, pubescent with whitish to dusky hairs and bristles, sides of first segment 

 with a fringe of white hairs; hypopygium small, simple, narrow, obliquely 

 ascending, black-pubescent. Coxse and legs yellow, their short sparse hairs 

 black, legs simple, slender, the hind tibiae slightly thickened, claws and pul- 

 villi small. Halteres pale yellow. Wings hyaline with a faint opalescence, 

 veins white, stigma almost obsolete, whitish, second basal cell broad, discal cell 

 open apically, the fourth vein forked midway its length, anal vein faint, van- 

 ishing. 



A single male ; Cloudcroft, New Mexico. May 27, 1902. (H. 

 L. Viereck). 



This species is placed in Euthyneura as it departs from typical 

 forms in no more salient characters than do the other species 

 iiere included. In other genera, e. g., Tliamnodromia, Hemerodro 

 iiiia, or Rhamphomyia, the discal cell is often incompletely formed. 



Euthyneura stentor sp. nov. 

 Male. Length 3. mm. — Opaque black, rather slender species. Head rather 

 large, eyes broadly contiguous, facets large above. Antennae short, inserted 

 low, the second joint elongate conical, suddenl.v narrowed at the base and then 

 gradually tapering, style short, plainly two-jointed, the firstjoint thick. Thorax 

 covered with long bristly black hairs; scutellum with ten long hairs. Abdomen 

 cylindrical, deflexed, pubescent with sparse hairs; hypopygium small, con sist- 

 ini^ of two small deflexed black-bristly valves, and a central forward -extending, 

 trumpet-shaped piece. Legs sleuder, moderately long, the femora ciliate above 

 and beneath with regular sparse hairs, claws and pulvilli conspicuous. Halteres 

 black. Wings lightly infumated, stigma elliptical blackish, veins narrow, black- 



