46 THOMAS SAY FOUNDATION 



Wings hyaline; hind crossvein nearly parallel 

 with wing-margin ; first vein bare, third bristly almost 

 to crossvein; no costal spine; third and fifth costal 

 segments equal. 



Female. Front .308 of head, the middle stripe 

 three times as wide as one side, two orbitals as usual, 

 outer vertical well developed; scutellum bristled as 

 in male; genital segment black, with a dense row of 

 small In-istles at edge, showing another complete end 

 of a segment Avithin, and another within this of which 

 the sternite is modified into a short, blunt larviposi- 

 tor; the first sternite of the abdomen is fidly as long 

 as the first tergite. 



Length, 7-8 mm. 



Seven males, one female: one pair North ]Mt., 

 Pa., June 7 and Sept. 1 (no collector) ; two males, 

 North Saugus, Mass., May 18, 1911 (II. E. Smith) : 

 one male, Las Vegas Mts., N. M., 11,000 ft., June, 

 1901 (Cockerell) ; two males, A-^ictoria, B. C, bred 

 from larvae of Vanessa antiopa by J. 1{. Anderson, 

 in the Canadian National Collection; one male, 

 White Mts. [N. II.] (Morrison), in the C. V. Riley 

 collection, U. S. National Museum. 



Type.— Probably in the Academy of Sciences in 

 Stockholm. 



HARBECKIA New Genus. 



The principal generic characters are the pro- 

 tuberant front, sliort fronto-orl)ital rows, rather 

 strong parafacial bristles in a long diagonal row. 

 vibrissge at oral margin but mucli above lower 

 line of head, wide bucca, strong acrosticlials, and 

 the four equally-spaced and equally large bristles 

 on the posterior margin of the scutellum in botli 

 sexes. The hypopygium of the male is Sarcophagid 

 in type, while the protuberant front and strong de- 

 velopment of the bristles suggest a Dexiid relation- 

 ship. Against the latter on the other hand might be 



