This was at Cady Lake today. I don't believe it hatched from the lake, so there is a tiny tiny outlet stream that they could come from. Is this a March Brown? Notice how long the tail is!! There is a center very short tail also. Tail is dark dun, wing is kind of dun with maybe a slight slight tint of brown. Body is chocolate brown. I haven't browsed my bug books yet. Help me! It can't be hatching in the lake! Look at those LONG tails! I didn't look close enough, they could be brown maybe, but I think more dun. Looking at this photo, the wing does look more brown, but outside today it looked more "dunish". Ha.