Are mayflies and lake flies the same thing? I say yes, and my wife says no!Answer
You might be taking your wife out to eat tonight because mayflies and lake flies, while both aquatic insects, are not the same. ...
Scott Koehnke, a water management specialist for the state Department of Natural Resources, gave me a crash course on freshwater entomology. He said mayflies belong to the Ephemeroptera order (four membranous wings, abdominal filaments) and are typically found in moving water like rivers and streams. They are a major food source for trout.