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Shad / mayfly

Shad / mayfly
Greater City of Sudbury, McFarlane Lake, Ontario, Canada
June 28, 2019
Size: Abt 3.5 cm
Resting in the shade on a hot sunny morning...nice dark linear demarcation to its wing!
Hundreds of adults emergence at the same time, this overwhelms predators and many escape being eaten (adult shadflies have no mouthparts), These mayflies mate and lay eggs before they die several days after emerging.

This is a Hexagenia sp.

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