Important medium size species on eastern
mountain streams. Like swift, tumbling
currents. Richly colored, mottled brown, pale
underside. Midsummer hatch, primarily early
morning. 1". 3 year life cycle.
"Great Brown Stonefly"
Acroneuria lycoris
giant stonefly nymph
Important medium
size species on eastern
mountain streams. Like swift, tumbling
currents. Richly colored, mottled brown, pale
underside. Midsummer hatch, primarily early
morning. 1". 3 year life cycle.
Other giant stoneflies: Giant
Black Stonefly;
Giant Salmon Fly; Great
Stonefly;
Golden
Stonefly