williston: new diptf.ra. 6i 



pollinose, leaving on the mesonotum two median stripes, separated by 

 a line, and, on either side, oval spots of a dark coffee-brown. Abdo- 

 men deep brown, lightly pruinose; genitals reddish. Legs brown, 

 the base of the femora yellowish; all the femora with a narrow, light- 

 yellow band before the tip. Wings whitish hyaline, with numerous, 

 dark brown, rounded spots, and with clouds on the cross-veins; 

 along the costa, four elongated brown spots, witli narrow, hyaline 

 intervals between them; tip of the auxiliary vein a little before the 

 middle of -the prefurca; marginal cross- vein at the tip of the first vein. 



Length, 9-10 mm. 



Three specimens, Washington, University of Kansas. 



Liranobia cinctipes Say. 



Two specimens from Washington agree with the description of this 

 species. 



Eriocera obscura, n. sp. 



Female. Black or deep brown, gray pollinose. First joint of the 

 palpi short, the second nearly as long as the two following together, 

 third and fourth a little thickened, the fourth incurved. Antennae 

 brown, sometimes yellowish, scarcely twice the length of the head; 

 first joint thickened; second joint globular; third joint slender, cyl- 

 indrical, as long as the next three joints together; fifth, sixth and 

 seventh joints slender, of nearly equal length; the antennae are 

 clothed with short, black hairs. Halteres light yellow; under process 

 of the short ovipositor light yellow at the tip. Legs obscure yellowish; 

 tip of femora, tibiae, and the tarsal joints brown. Wings sub-hyaline, 

 with distinct blackish clouds on all the cross-veins and on the outer 

 end of the posterior veins; the auxiliary vein terminates in the costa 

 a short distance before the origin of the second vein; the second vein 

 arises before the middle of the wing, rectangularly, and has a consid- 

 erable stump of a vein; the marginal cross-vein unites with the second 

 vein at its furcation, a short distance before the tip of the second 

 vein; prefurca of the second vein as long as the posterior side of the 

 discal cell. 



Length, 9-10 mm. 



Five specimens, Washington and California. In two of the speci- 

 mens, the mesonotum is clothed with light yellowish hair; in the 

 others, with short, black, more bristly hairs. In two or three there is 

 a marked tendency to irregular cross -veins. 



Eriocera eriophora, n. sp. 



Male. Head brownish red, the occiput gray pollinose; pile long, 

 light yellow. Palpi longer than the head; first, second and fourth 



