This and the house fly become blind and weak in September, are frequently blown upon the water, and afford good sport. They may be used especially after a frosty night, but are not unsuccessful earlier in the season.

Imitation.

Body.—Bright blue mohair, tied with light brown silk. The body thick.

Wings.—The lightest feather of a robin’s wing.

Legs.—Two turns of a black hackle.

The House Fly may be made thus:

Body.—Light brown and green mohair mixed.

Wings.—Light-colored feather from a robin’s wing.

Legs.—A blue dun hackle.

Head.—Green peacock’s herl, with two or three turns under the wings.