354 , CHARLES T. BRUES. 



somewhat as in the female of coronata Becker. Postocular cilia very long and 

 stout below, cheeks eacli with one long bristle. Thorax suhshining, with one 

 pair of dorsocentral macrochaetae and four marginal scutellar bristles. Abdomen 

 with considerable hair on the sides, second segment longest. Front tibia with a 

 single strong seta before the middle; anterior tarsi with the last joint not Bat- 

 tened or enlarged ; intermediate tibia with two setae at the basal third, also two 

 long and several short apical spines ; hind femora much flattened, their tibiae with 

 no setae, but the small appressed hairs are arranged in about twenty-five comb- 

 like transverse rows along the entire length of the hind side, much as in P. mul- 

 tiseriata, with two long and several short apical spines. Wings brownish, especially 

 toward the tips, costal vein reaching nearly to the middle of the wing, densely 

 ciliate with rather long hairs; first vein terminating nearly two-thirds the dis- 

 tance from the humeral vein to the tip of costal ; fourth vein gently curved at 

 base and slightly recurved at apex ; seventh vein distinct." (J. M. A. MS.) 



One female, Pittsburg, Pa., from Mr. G. A. Ehrmann, to whose 

 enthusiasm and kindness I owe a number of interesting species of 

 Diptera. 



Hypocera fe mo rata Meig. (Plate vi, fig. 21.) 



Meigen, Syst. Beschr., vi, 213, 5 (1830). 



Zetterstedt, Dipt, Scand., vii, 2886, 34. 



Schiner, Fauna Austriaea, ii, p. 339. 



Becker, Mouog. Phor., p. 41 (1901). 

 Male. Length 2 5-3 mm. Thorax, abdomen and halteres black. Dorsum of 

 thorax rather shining and bearing only one pair of dorsocentral macrochaetae and 

 two marginal scutellar bristles. Front wide, strongly convex and shining; the 

 middle row of bristles forming a straight line very near to the vertex, so that 

 the distance between it and the. lower row is greater than usual ; the lower row 

 is arcuate and the two middle bristles above the antennas are lacking. Antennae, 

 palpi and proboscis black ; third antennal joint small with a bare arista; a long 

 macrochaeta placed at the corner of the eye. Abdomen opaque, the second seg- 

 ment elongated and with long hairs on the sides, sixth segment not elongated 

 Hypopygium small, usually only two lamellae, and no basal cylindrical part 

 visible. Legs piceous, coxae at tip and knees only a little paler. Fore tibia? 

 and tarsi reddish-brown, the former with a bristle at the basal third ; middle 

 tibiae with a pair of bristles at the same place and also a bristle on the outer side 

 just before the apex, as well as a long apical spur. Hind tibia? grooved and 

 thickened, with a bristle on the outer side at the basal third, a second just before 

 the apex, and three to four apical spurs. Wings weakly tinged with yellowish 

 brown, the costal vein reaching to the middle of the wing, not thickened and 

 provided with short bristles; third vein not forked, but usually enlarged and 

 slightly lamellate at apex, finely hairy for its entire length. First and third 

 longitudinal veins widely separated, so that the first segment of the costal vein 

 is only one and one-fourth times as long as the second. Fourth vein very 

 strongly arcuate at its base, straight at apex, approaching near to the fifth at 

 base. 



The female differs in having the lamelliibrm enlargement of the 

 third vein more distinct. 



