1 6 MELANDER AND BRUES. 



with one pair of dorsocentral and two scutellar bristles. Abdomen black, 

 nowhere bristly. Legs pale yellow, the tarsi sometimes brownish ; hind 

 tibiae very indistinctly ciliated and with a single weak spur, as have also 

 the middle pair. On the inner side at the apex the posterior pair have 

 several transverse rows of short black bristles. Wings yellowish hyaline, 

 the costal vein reaching distinctly beyond the middle of the wing and with 

 very short cilia. First vein ending a little closer to the tip of the second 

 than to the humeral cross vein. Fourth vein evenly arcuate, fifth vein 

 sinuate as is also the sixth ; seventh vein present. Halteres yellowish, 

 blackened at the tips. 



Described from two female specimens collected at Woods 

 Hole, Mass., July 15, 1902, about the burrows of Halictus pnt- 

 inosiis. 



This species is readily recognizable on account of the excessive 

 development of the proboscis, which is evident!}' adapted to some 

 peculiar method of food-getting. It is also characterized espe- 

 cially by the very shining front, which seems to place it near to 

 the European P. minor Zett., with which it agrees is some other 

 characters. 



Phora cata sp. nov. 



Male and Female. 0.8-1.2 mm. Black, legs and palpi yellowish or 

 brown, antennas of male enlarged. Anterior frontal bristles proclinate. 

 Head black, front short, about as wide as long, subshining, faintly gray 

 pollinose in the male, two anterior bristles proclinate, the others all present 

 and arranged as usual. Antenna; wholly black in the male, in which sex 

 the third joint is enlarged and ovate so as to be very conspicuous, in the 

 female they are of the usual size and slightly yellowish at the base ; arista 

 pubescent. Palpi light yellow, strongly bristly. Proboscis of female pro- 

 jecting, stout and horny. Thorax shining, black, hairy, with one pair of 

 dorsocentrals and two marginal scutellar bristles. Abdomen black. Legs 

 yellowish-brown, the anterior pair lighter. Posterior femora ciliated below 

 on apical half, their tibiae without any rows of small bristles on the outer 

 side ; four posterior tibiae each with a delicate apical spur. Wings hyaline, 

 the costal vein not quite reaching to the middle of the wing, its cilia short 

 and closely placed. Third vein far from the costa at its base, and forked 

 very near the apex. Tip of first vein twice as far from the humeral vein 

 as from the tip of the second. Fourth vein slightly but evenly curved, re- 

 curved at the extreme tip. Fifth slightly diverging from the fourth to its 

 tip, which is as far behind the wing tip as the fourth is before it. Seventh 

 vein faint but distinct. Halteres yellowish in the female, piceous in the male- 

 Described from a single pair from Woods Hole, Mass. The 

 lighter color of the female is most likely due to her apparently 



