"Golden Stonefly"
Acroneuria
californica
giant stonefly nymph
to reveal adult form, place
mouse over image
These big insects
are second in importance to
the Giant Salmon Flies on our western rivers.
1 1/4". Emerge early June to mid-July over 10 day
to 2 week period. Rich amber color with strong
brown on head and body. Found among rocks
& rubble swift rivers. Fish down-&-across, deep.
Other giant stoneflies: Giant
Black Stonefly;
Great Brown Stonefly; Great
Stonefly;
Giant
Salmon Fly