Legs.—A very small and very light dun hackle, nearly white.

No. 16. The Little Yellow May Dun.

This is another of the ephemeridæ, and a most useful one to the fisherman. It is not so small as the preceding one (No. 14), and changes to a very light red spinner.

Imitation.

Body.—Pale ginger-colored mohair, ribbed with yellow silk.

Tail.—Two whisks of yellow, or ginger hackle.

Wings.—Mottled feather of the mallard, dyed a greenish yellow.

Legs.—Light ginger hackle, dyed the same color as the wings.

No. 17. The Black Gnat.

Every fisherman is familiar with this little insect, and has taken trout with their mouths and throats filled with them. It is, however, not properly a gnat, but a midge.