Ephemeroptera, Ephemeridae, Litobrancha. Trucka Brook, Essex Co., NY These burrowing mayfl
Ephemeroptera, Ephemeridae, Litobrancha. Trucka Brook, Essex Co., NY These burrowing mayflies are typically found in clean, highly oxygenated creeks. They wave their feathery gills within their burrows to maintain a steady stream of oxygenated water. Poor water quality nearly eliminated burrowing mayflies from the upper Mississippi River, but improvements in environmental regulations have led to the steady increase of these mayflies in their historical range (Voshell, JR. 2002). -- source link