Similar to Salmon Flies, but smaller.
Strongly colored, brown with mottled head,
body & wing cases. 1". Found in western
rivers to high elevation & cold headwaters
of alkaline streams.
"Brown Willow Fly"
Acroneuria
pacifica
common stonefly nymph
Similar to Salmon
Flies, but smaller.
Strongly colored, brown with mottled head,
body & wing cases. 1". Found in western
rivers to high elevation & cold headwaters
of alkaline streams.
Other common stoneflies: Black Willow Fly