FLIES AND KNOTS. 261 
gelatinous ephemerae swim upon the water, the midges 
are on quiet days the most successful ; and when the sky 
is bright, subdued colors are in principal demand. 
In June there are prominent, among many others, 
the black fly, with body, wings, legs and antennae all of 
the same sable hue, busy the entire day dancing over the 
water a veritable dance of death, for it is often terminat- 
ed by the fatal rush of the watchful trout ; a dun fly, 
with greyish dun mottled wings, grey legs, and light 
green body ; another fly with similar wings, but red 
legs, and a rich brown body — none of these having any 
whisks in their tails ; another beautiful and delicate yel- 
low fly, that appears generally in the morning and eve- 
ning, and flies heavily and slowly from place to place, 
till it falls suddenly, and is forever submerged in the 
cruel waters. Its legs, body and wings are yellow, the 
latter being the palest, and it has two short whisks and 
antennas of the same color. All the foregoing have four 
wings, in the black and yellow varieties strongly reticu- 
lated, and all but the last swim well under water. Tow- 
ard night a frail whitish fly makes its appearance still 
more fragile than its yellow compeer ; it has two wings, 
a thick body and long whisks. The eyes of the yellow 
and white fly are black spots, and although I never have 
done much with a white fly, a small yellowish drake was 
successful when the yellow flies were abundant. A bet- 
ter imitation however could be made of pure yellow. 
On one occasion I was struck with the fact that 
although I did not know these insects were on the water, 
my only successful flies were a yellowish fly, a green- 
bodied, dun- winged fly, and a similar fly with a brown 
