Hook 1.

Wings.—From a Waterhen’s primary quill feather, the outer side of the feather as the outside of the wing. Wings put on “penthouse” fashion.

Body.—Black silk, No. 9, dubbed very sparingly with Mole’s fur and ribbed with olive silk, No. 11.

Legs.—Black Cock’s hackle or Green Plover’s topping.

Head.—Black silk.

Antennæ.—Two strands from a black and white feather from a Mallard’s breast.

Middle of July to the end of August.

No. 32.

August Dun.

Ephemeridæ.