Mayfly - Rowsley

Mayfly's were in good numbers at Rowsley this morning. The Mayfly is unusual in that a winged dull coloured sub-adult emerges from the nymph and it then sheds it skin again several hours later to produce the brightly coloured adult as in this photo. Having reached this adult state the Mayfly only has a few hours of life left during which it must mate to secure the next generation.

Mayfly