Wings.—From a Coot’s primary quill feather, the outer side of the feather as the under side of the wing.

Body.—Yellow silk, No. 4, dubbed sparingly with Mole’s fur.

Tail.—Two strands from a medium olive Cock’s hackle.

Legs.—Medium olive Hen’s hackle.

Head.—Yellow silk.

July and August.

No. 28.

Rough-Bodied Poult.

Ephemeridæ.