ON CREEPERS. 105 
from just within the water's edge, aud their empty creeper 
skins on those without. They are hatching, when the 
weather is open, nearly the year round. Some of them 
leave the water with their wings only in the bud, and may 
be seen running exceedingly fast on the tops of posts or 
large stones by the water sides, when the sun shines warmly 
upon them—query, are they males? 
3RD.—YELLOW Brown (Yellow Sally).—Length, about 
three-eighths, more or less ; legs and whisks yellow ; head, 
shoulders, and body, yellow ground, marked on the upper 
parts with dark brown. Is a beautiful little creeper, and 
may be found when the water is low, under stones by the 
‘sides and in shallow runs, at the time of hatching, when 
they fix themselves to the under sides of stones just with- 
out the water’s edge. 
All the creepers of this class are readily taken by the fish, 
but they instinctively keep themselves close under the 
stones. 
CREEPERS OF THE DRAKE CLASS. 
No eggs have been seen attached to the bodies of the females 
of this class, but from their frequent dropping upon the 
waters it may be supposed they then deposit the germ of 
their creepers, which have an uncouth appearance when 
compared with their neat trim flies. The heads of most of 
them are large and round, particularly those species which 
produce flies with large gogling and case eyes ; their shoul- 
ders are round and made larger by the enclosed wings ; the 
body and whisks are similar to those of the flies, but more 
bulky, and the whisks, legs, and some of the joints of the 
body set with fine hair, which flows and moves in the water, 
and may answer the purpose of fins. The smaller species 
require looking at closely to distinguish them. They are 
of a jelly-like transparency ; the colors and marks of the 
