J. R. MALLOCH 283 



Frons distinctly longer than broad, parallol-sided; each orbit with three 

 long bristles and a weak hair between the forward pair; antennae not as long 

 as face, third joint slender, twice as long as second, sharply angulate at apex 

 on upper side; arista pubescent; face vertical in profile, the orbits narrow, but 

 distinct on their whole length in profile; cheek not twice as high as width of 

 parafacial (orbit) in profile, margin with a series of long hairs, vibrissal angle 

 not elevated; vibrissa long, one bristle above it. Presutural acrostichals weak, 

 two-rowed. Abdomen rather short, subcylindrical, all segments with discal 

 bristles in transverse series, those on segments three and four very long; fifth 

 sternite with lateral processes short, somewhat angulate at apices. Fore 

 tibia with one posterior median bristle; mid tibia with two bristles at same 

 distance from base, one antero-dorsal and one postero-dorsal; mid femora 

 with a few widely placed bristles on postero-A^entral surface; hind femur with 

 long wideh' placed bristles on antero-and postero-ventral surfaces; hind tibia 

 with two bristles, one antero-dorsal and one antero-ventral, the latter much 

 nearer to apex than the former. Wing venation similar to that of tibialis 

 Stein but the sixth vein is shorter, almost absent, and the apex of wing is 

 not pointed as in that species, so that the apices of veins 3 and 4 are almost 

 in vertical line, whereas in tibialis the third vein is almost in extreme apex, 

 while the fourth is much caudad of it. Length, 2.75 to 3.5 mm. 



Type. — cf ; Milbrae, San Mateo County, California, March 20, 

 1908, [A. N. S. No. 6202]. Paratypes.—7 9, Highrolls, New 

 Mexico, June 2 and 10, 1902; Berkelc.v Hills, California, March 

 14, 1908; Tro3\ Idaho, May 31, 1908; Beulah, New Mexico, June 

 28, 1902; Bhtzen River, Oregon, July 6, 190G, [Illinois]. 



There are also before me fifteen female specimens from the 

 collection of the United States Bureau of Biological Survey taken 

 at Grant, and John Smith Ranger Ranch, Colorado, July 3 and 

 20 to 21 and August 20. 



The foregoing species very closely resembles tibialis Stein in 

 color, but differs in having the third antennal joint slender, the 

 parafacials distinct in profik^ and th(> mid ti])ial bristles at same 

 distance from l)ase. 



Coenosia ovata Stein 



1897. Coenosia ovala Stein, Bcrl. Ent. Zeit., .xlii, 263. 



In the original description of this species Stein makes no men- 

 tion of the peculiar lobe-like protuberance of the anal angle of 

 the wing in the male of this species, which at once separates it 

 from any so far recorded from North America. 



There arc three specimens in the collection before me from the 

 following localiti(>s: one male, Highrolls, New Mexico, June 11, 



TKANS. AM. ENT. SOC, XLIV. 



