194 Annals Entomological Society of America [Vol. IX, 



plate of female about one and one-half times as long as broad, narrowed 

 toward tip, behind at tip the dark striated area is very narrow. 

 Posterior cell open. 

 Length 7.5 mm. 



From Pocono Lake, Pa., and Clementon, N. J. May and 

 July, all from Mr. C. W. Greene. Cotypes in his and author's 

 collection. 



Zodion sayi n. sp. 



Very similar to Z. intermedium, but smaller. Face, front, antennae, 

 .thorax, abdomen and legs colored and marked as in that species. The 

 wings also the same, first posterior cell open. Pubescence and pollen 

 as in that species. The proboscis is rather shorter, from palpi to tip 

 about once and a fourth the eye-height. The ventral plate is very 

 different from Z. intermedium, and similar to that of Z. fulvifrons 

 iahitus) being low, much broader than high, and behind with a very 

 broad, dark striated area. 



Length, 6 mm. 



From Falls Church, July and Sept., and Mt. Jefferson and 

 Horse Lake, Oregon, July (Lovett). Males from Mt. Gray- 

 beard, N. Car., May, and La Quintina, Cal., probably belong 

 here. I have named it in honor of him whose description of 

 Z. fulvifrons was sufficiently accurate to enable me to describe 

 this form. 



Zodion occidentale n. sp. 



Face whitish; front golden, darker on the vertex, with the dark 

 spots on the middle toward the antennae ; occiput largely black ; antennae 

 reddish, third joint as long as the second, arista black; thorax brownish 

 gray, with the usual stripes distinct, except the median one, which is 

 faint. Abdomen brownish gray, paler near tip, indistinct blackish 

 spots near middle; legs yellowish, femora often blackish above; tarsi 

 darker, last joint black. Wings gray hyaline, veins dark. Vertex 

 thorax, abdomen and legs clothed with rather long, black hair. Cheeks 

 more than one-half eye-height; proboscis rather short. Ventral plate 

 a little longer than broad. 



Length 7.5 to 9 mm. 



From Montaville, Mary's River, and Corvallis, Oregon, 

 May and July (Lovett). Cotypes in collections of Oregon 

 Agricultural College and that of author. 



Zodion obscurum n. sp. 



Face whitish, front golden, a brown median stripe reaching 

 forward from the ocelH; antennae reddish, arista mostly pale, third 

 joint fully as long as the second; occiput mostly black. Thorax black. 



