What type of Mayflies hatch near Memorial day in the eastern United States?

Question

They are a primary food for trout in cold-water streams!

Clue: This mayfly has a white body, and black wings.

Also, what other different names are there for this particular mayfly?

Answer 1

I don't know that fly specifically. The sites below have other links that may help you.

What you need is an entomology resource.