This is an Ichneumon Fly. It is furnished with an ovipositor, for the purpose of piercing the skins of caterpillars, in which it deposits its eggs, the grub from which grows in, and ultimately kills, the insect in which it was hatched.
Imitation.
Body.—Orange floss silk tied on with black. Thick and square at the tail.
Wings.—Darkest part of a robin’s wing.
Legs.—A very dark furnace hackle.
No. 33. The Cinnamon Fly.
This fly comes from a water pupa. It should be used after a shower, and on a windy day. It is a very killing fly on some waters, and somewhat resembles the land fly, but does not appear so early.
Imitation.
Body.—Fawn-colored mohair, tied on silk of the same color.
Wings.—Feather of a yellow-brown hen’s wing, rather darker than the thrush feather. To lie flat.