120 0. H. TYLER TOWNSEND. 



thickly pubescent, descending three-fourths as low as oral margin. 

 Antennae nearly as long as face, inserted considerably below a line 

 drawn through middle of eyes, first joint rather short, second some- 

 what elongate, third fully twice as long as second, rather narrowed, 

 subtruncate at tip ; arista moderately long, very short pubescent, 

 thickened on basal third, 3-jointed, second joint short. Proboscis 

 shorter than hight of head, somewhat stout, labella very large ; palpi 

 reaching about to tip of proboscis, rather slender, thickened toward 

 tip, bristly on underside. Thorax rather stout, fully as wide as head ; 

 scutellum with an apical and three lateral pairs of macrochaetfe, the 

 apical pair reaching to middle of second abdominal segment. Ab- 

 domen hardly as wide as thorax, elongate-conical, very bristly and 

 hairy, first segment strikingly elongate ; macrocha?t?e numerous, 

 discal and marginal ; hypopygium of % exserted. Legs somewhat 

 long, not stout, femora hairy, tibijB somewhat bristly ; claws and 

 pulvilli of S rather elongate. Wings longer than abdomen, wide 

 at base, narrowing toward tip, with very small costal spine, third 

 vein with a bristle or two at base ; apical cell ending in tip of wing, 

 open ; fourth vein curved at bend, apical cross-vein nearly straight, 

 hind cross-vein more or less bent, about in middle between small 

 cross-vein and bend of fourth. Type, E. com-stocki n. sp. 



Eulasiona COlllstocki n. sp. %. — Eyes cinnamoii-browii, frontal vitta 

 very narrow, hrown ; sides of front, face and cheeks silvery-white, darker in 

 some lights: ocellar bristles in a tuft, the front pair a little the strongest, di- 

 rected forward, as are also the others; antennse and arista bla(^k ; proboscis 

 brown, palpi black, black-bristly; occiput dark cinereous, black-hairy. Thorax 

 blackish, with an indistinct pair of darker vittfe becoming lost near suture, 

 humeri silvery : scutellum black, black-hairy. Abdomen black, long-hairy and 

 bristly, segments two to four broadly silvery-white at base ; all segments densely 

 set with marginal and discal macrochsetie. except first which is without discal ; 

 hypopygium blackish. Legs black, femora hairy, tibise bristly : pulvilli yellowish 

 fuscous. Wings grayish hyaline internally, broadly smoky golden on l)asal and 

 costal portions, tegulse golden, halteres yellow. Length of body 65 mm. ; of 

 wing 5.5 mm. 



Described from one specimen ; Ithaca, N. Y. (J. H. Comstock.) 



EMPHATIfOPTERYX n. gen. 

 Moderately large species. Belongs in Thryptoceratinte. Very 

 closely allied to Eumyothyria, from which it differs only as follows : 

 Sides of face clothed with short hairs, cheeks hairy ; arista micro- 

 scopically pubescent. Proboscis stout, labella large ; palpi large, 

 elongate, reaching tip of proboscis, club-shaped. Macrochsetse discal. 



