7 THE CLASSES. 
but are most observable after casting their skins. Some 
species, like the Green Drake, hatch their main body in 
two or three weeks, and soon after disappear for the sea- 
son ; others, like the iron blue, continue hatching succes- 
sively through it. They are a delicate and beautiful class 
of flies, of various sizes, colors and shades—abounding in 
all their varieties in vast numbers, in the streams of Ripon, 
and are general favorites with fish. The class contains the 
following species : 
Blue Drake (Blue Dun) F . Page 17 
Orange . - 4 ‘ 5 . = 18 
Brown (March Brown) . 3 : é 22 
Amber . F : ‘ ij ‘ 23 
Iron Blue. ‘ : . i ‘ 33 
Pearl. 4 : a ; 2 : 33 
Spiral Brown (Checkwing) . : 34 
Red (erroneously Great Red Spinner) B5 
Little Dark . é ‘ ‘ 36 
Little Red. : 3 . 5 36 
Red Brown . g é é : 7 37 
Dark Amber . ‘ ‘ é ‘ ‘ 38 
Dark (Dark Watchet) ‘ - é 39 
Dark Red ‘ é ri i 39 
Light (Light Watchet) “ : ; 44 
Light Red. : : 3 ‘ 45 
Black . i 4 é : ‘ Fi 50 
Black Red. : : ‘ , é 50 
Green . ‘ z ‘ j 2 i 51 
Grey. x ‘ i : é 55 
White . : : 5 é 56 
Vermillion . : $ 5 . 62 
Spotted Whisk . é . 2 70 
Coral-eyed . ‘ ‘ ‘ 71 
Pale Blue p 4 : . F 72 
3RD.—Duns.—The red dun is the largest of the dun 
tribes, and the representative of this class; the least 
freckled dun is the smallest mentioned here. They have 
two long feelers, small heads, short necks, and small jumped- 
up shoulders ; their bodies consist of eight or nine joints, 
are rather longer than the head and shoulders, and a little 
