Hook 0 or 1.
Wings.—Hackled with a light blue feather from the under coverts of a young Grouse wing, taken before the bird is strong on the wing. (The lighter side of the feather towards the head of the fly.) This feather darkens very rapidly on the live bird from August onwards.
Body.—Straw-coloured silk, No. 2, dubbed sparingly with buff fur from the flank of an Opossum.
Head.—Straw-coloured silk.
July, August and September.
No. 29.
Pale Watery Dun.
Ephemeridæ.
Hook 0 or 1.
Wings.—From a young Starling’s light primary quill feather, the inner side of the feather as the under side of the wing.