i. //. fascia/a. 



1. S. bijasciata. 



2. S. fasciata. 



HETEROMYIA. 



in. ; greenish; wing with brown bands. 



SCIOPHILA. Shade Gnat. 



ig in. ; brownish yellow with black lines, with two blackish bands. 

 in. ; yellowish; with three stripes; body with brown bands. 



MYCETOPHILA. Fungus Gnat. 



1. .)/. sericea. fa in. ; brown, with whitish-silky bloom ; body yellow-edged. 



2. .17. maculiftennii,. ^ in. ; yellow, with three striped wings with three brown spots. 



i. S. fulviventris. 



SCIARA. Mourning Gnat. 



in.: black; waist yellow, hairy. 



Family 9. CECIDOMYID/E. (fall Gnats. Small, often very small flies, which cause the curious out- 

 growth on manv plants, as on the willow, blueberry, etc. Some kinds are very injurious to the crops. 



DIPLOSIS. 



1 . 1). Hiacrus. } 4 in. ; yellowish ; chest reddish-striped ; legs and feelers black-banded ; wing with violet spots. 



2. D. carryce. Pale, with gray and black stripes. On hickory trees. 



(21) 



