AMERICAN DIPTERA. 347 



Phora luggeri Aldrich. (Fig, 13.) 

 Aid rich, Canadian Entomologist, xxiv, 145. 



Head brownish black, front very broad, at the lower border with two small, 

 widely divergent bristles arising a little below the lower edge of the front. 

 Antennae and palpi brownish yellow, the former with a yellow arista, the latter 

 with stiff black bristles. Thorax brownish black, with few and small bristles: 

 dorsum with a single pair of dorsocentral bristles and four marginal scutellar 

 ones. Abdomen more or less yellowish at base above, the remainder brownish 

 black. Wings hyaline, the heavy veins yellow; third vein hairy on the upper 

 side to the point of furcation which is near the end, the two branches forming a 

 very sharp angle; costal vein reaching considerably beyond the middle of the 

 wing, its bristles short and fine; first vein ending a little nearer to the tip of 

 costa than to the humeral cross-vein. Fourth vein strongly bowed at base, 

 straight for the remaining two-thirds of its course, ending at the apex of the 

 wing. Halteres wholly yellow. Legs entirely yellow, the front tibise with a 

 bristle on the outer side below the knee, the middle and hind tibise each with a 

 pair in the same position; middle ones with a subapical single bristle and one 

 spur; hind ones with a pair of subapical bristles and a single spur. 



Length 2.2-2.6 mm., of wing 2.5-3 mm. 



The original types of this species were two females from St. Paul 

 (Lugger). 



Besides these, there are some twenty-four specimens in the collec- 

 tion from other parts of the country, as follows : twenty from Law- 

 rence, Kans. (two being from the University of Kansas collection 

 and the others from Aldrich); one from Delaware County, Pa. 

 (Johnson); one from New Bedford, Mass. (Hough). 



Phora nititlif rons sp. nov. (Fig. 14.) 

 Length 1.75-2.25 mm. Black, shining, front legs and antenna- brownish. 

 Head black ; front short, a little wider than high, very shining and quite smooth 

 except for a few delicate lateral punctures in some females ; bristles all present, 

 of medium size. Palpi piceous, antennae a little lighter, somewhat enlarged in 

 the male; arista bare. Cheeks below with two stout macrochaetae. Dorsum of 

 thorax shining, with one. pair of dorsocentral macrochaeta 1 and four scutellar 

 bristles. Abdomen entirely black ; a yellow spot sometimes present above at the 

 base. Legs piceous black, front pair, knees and tarsi usually more brownish yel- 

 low. Front tibise with a single bristle at basal third ; middle ones with a pair in 

 the same position ; hind femora stout; hind tibiae grooved above, with three to 

 five (usually four) small setae, arranged serially on the outer side. Tibial spurs 

 weak, especially those of the middle legs. Projecting part of hypopygium rufous 

 Wings snbhyaline, costa reaching about to the middle of the wing, its bristles 

 closely placed but very short and delicate; tip of first vein twice as far from the 

 humeral cross-vein as from tip of costa ; fourth vein straight at base, recurved at 

 apex; seventh vein distinct. Halteres pale. 



This species resembles P. cimbicis Aid. very closely, but can 

 always be separated from it by the smooth front and pale halteres. 



TRANS. AM. ENT. SOC. XXIX. NOVEMBER. 1903 



