24 PEOCEEDINGS OF THE NATIONAL. MUSEUM vol.79 



ward, gray pollinose tinged with yellow on upper portion, clothed 

 with black hairs except next to eyes (in the type the hairs are 

 arranged in three almost regular rows) ; vibrissae somewhat ap- 

 proximated, rather short, on oral margin; antennae black, base of 

 third and apex of second joints reddish; third joint rather slender, 

 less than twice the length of second; arista black, slightly thickened 

 near base and very slender beyond middle; cheeks about one-sixth 

 the eye height, densely haired; palpi blackish at base becoming 

 brownish or yellow toward the tips and beset with numerous black 

 hairs. 



Thorax black, humeri and pleura conspicuously pollinose, mesono- 

 tum shining but with thin brownish pollen apparent in a flat rear 

 view^, the dark stripes very indistinct even before the suture ; scutel- 

 lum reddish, lightly dusted with pale pollen, bearing the usual 

 three lateral and one decussate apical pair of bristles besides a discal 

 pair; calypters tawny. 



Abdomen black with a red color apparent on sides ; the pollen on 

 last three segments interrupted by a narrow but distinct black 

 median stripe, which expands to a roundish spot on basal half of the 

 second segment above; first and second segments without median 

 marginal bristles, third Avith a marginal row of about 10; fourth 

 covered wdth smaller bristles which are irregularly placed ; hairs on 

 intermediate segments depressed; venter without defined patches of 

 thick or matted hairs. 



Legs black ; mid tibiae with one bristle on the outer front side near 

 middle; hind tibiae densely and evenly ciliated; claws and pulvilli 

 -distinctly elongated. 



Wings hyaline ; venation as usual ; third vein with one or two hairs 

 at base; costal spine minute. 



Length, 11 to 12 mm. 



Type.—M2,\Q, U.S.N.M. No. 22254, from Dixie Landing, Va. 



E-edescribed from 4 males, including the type : 1 from Dixie Land- 

 ing, Va., July 21, 1914, on foliage (C. H. T. Townsend) ; 1, Rockville, 

 Pa., July 11, 1915 (E. Daecke), collection J. M. Aldrich; 1 hibeled 

 531 (W. E. Walton collection). In Professor Hine's collection there 

 is one specimen from Hinckley, Medina County, Ohio, August 8, 1903 

 (J. S. Hine). 



The species is barely distinct from the European ^¥. speciosa 

 Egger, Avhich differs in having the parafacials a little more densely 

 haired; the third antennal joint slightly broader and almost three 

 times as long as the second. Having seen only one specimen of the 

 latter species, I can not determine the extent of variation that may 

 occur, and I consider it expedient to recognize the two forms as 

 distinct for the present. 



