• Use for Brown Drakes, March Browns, every where there are large brownish mayflies hatching to the delight of trout and fly anglers.
• Ephemera simulans are important in the Midwest, East, and West.
• Some streams have heavier hatches than others. Hatches occur late afternoon till nightfall.
• Brown Drake nymphs are burrowers and not often important to trout, but you can always use large hare's ears.  The nymphs primarily move at night.