A walk in the meadows at Granchester yesterday evening was a delight with warm evening sunshine and hardly any wind. The hot weather after a couple of cold days was ideal conditions for Mayflies to hatch and swarm. I was surprised to have caught them so clearly in this image looking towards the setting sun (shielded by the tall hedge). Will have another attempt - next time choosing manual focus at various distances.
Adult of Ephemera danica is about 20 mm long excluding the three tail filaments.The adults do not feed and generally live for less than a day. During this brief existence they must mate and lay eggs. The nymphs of Ephemera live and burrow in gravel, sandy or muddy areas of rivers and lakes. Nymphal development may take up to two years, but most mayflies complete their life cycle in one year.
This one has been caught in a spider's web over the water.
2 comments:
A perfect image for identification purposes! You forgot an important fact, however: trout love to eat them!
Great Pictures Ann
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