The Caddis or Sedge flies, as I have pointed out, are a very numerous family, and most of them are taken very readily by the trout. These flies, when on the water, generally have their wings in the position of rest. Notwithstanding this fact, the wings of the imitation Sedges are always put in an upright position, while the position of the wings at rest in the natural flies is practically the same as in the case of the Alder, though the lower edges of the wings do not, as a rule, come quite so low in relation to their bodies.
The Grannom (Brachycentrus subnubilus, Curt.).
This fly is extremely numerous on many of the streams in the South, and is so well known to the fisherman that a description is almost needless. It appears about the middle of April, and lasts five or six weeks, though Ronalds says that he has found them in the stomachs of trout as late as August.
The bunch of eggs which the female carries at the tail is best represented by winding on some bluish-green floss silk or wool at the end of the body, which should be carried well down on the bend of the hook, as shown in the illustration of the imitation fly.
Body. Light coloured fur from hare’s face, with green floss silk or wool at the tail. If ribbed with narrow gold tinsel is sometimes more successful.
Hackle. Light ginger, or, better still, a hackle dark in the centre and light ginger at the ends.
Wings. The lightest-coloured feathers from a partridge’s wings.
Hook. No. 1—3, new size.
(Plates [I]. and [III]. give illustrations of the natural and artificial Grannom.)
The Sand Fly (Limnephilus flavus, Steph.).