506 PROCEEDINOS OF THE NATIONAL MUSEUM. vol.43. 



PtJLICIPHORA SYLVATICA Brues. 



Male. — Black; both pairs of post-antennal bristles present, un- 

 usually long, but slender, anterior lateral reclinate bristles present, 

 second row strongly convex; palpi much enlarged and flattened, leaf- 

 like, nearly as long as height of head and as broad as the eye, strongly 

 bristly along the inferior edge near and at the apex, antennae of mod- 

 erate size, oval, arista pubescent; thorax subshining, four marginal 

 scutellar bristles; abdomen smooth, faintly shining along the sutures, 

 with a few sparse bristly hairs scattered over its surface, second seg- 

 ment slightly elongated, hypopygium not prominent, the superior 

 lamella (anal protuberance?) more strongly hairy than usual; legs 

 long and slender, quite thickly clothed with short, velvety pubescence, 

 but without any setulae; tibial spurs obsolete on all legs, wings large, 

 strongly infuscated especially in front and along the viens; costal 

 vein at a little beyond middle, cilia almost obsolete, first division of 

 costa slightly but very appreciably shorter than second, fourth vein 

 almost straight, halteres pure black. 



Length, 1 mm. 



Described from one male, Mount Constitution, Orcas Island, Juan 

 County, Washington (July, 1908).^ Brues mentions that the female 

 should be a very striking form, as the male is unusually large. I can 

 not see how this should be so, unless there is a mistake in the size 

 given, as venata, the only species described prior to this in the male 

 sex from America, is given as 1.3 mm. 



PULICIPHORA VENATA Aldrlch. 



Male. — Brownish black; frontal bristles as in sylvatica, -palipi brown, 

 normal in size and bristling, the frons black, antennae piceous, arista 

 strongly pubescent, thorax brownish black, four scutellar bristles, 

 abdomen black, hypopygium brown, with two black projecting clasp- 

 ers below, anal protuberance brownish, strongly haired; legs yellow, 

 femora darker, tibial spurs very minute, wings with costa to about the 

 middle, first division shorter than second, fringe microscopic, fourth 

 vein nearly straight and ending very near to the wing tip; halteres 

 brownish black. 



Length, 1.3 mm. 



Described ^ as PTiora from St. Vincent, West Indies. Type-speci- 

 men in collection. 



PULICIPHORA BORINQUENSIS Wheeler. 



Male. — ^Yellow; frons yellowish-brown, much broader than long, 

 under pair of post-antennal bristles small, upper pair strong, the pair 

 on anterior margin strongly incurved, second row nearly straight, 

 antennae of moderate size, yellow, arista not so distinctly pubescent 



» Bull. Wis. Nat. Hist. Soc, vol. 7, 1909, p. 107. a Trans. Lond. Ent. Soc., pt. 3, 1896, p. 436. 



