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> > Unidentified: Not a Trichoptera or Ephemeroptera

This topic is about the Insect Order Ephemeroptera

Mayflies may be the most important insects for trout anglers to understand. They are an ancient order of insects, famous outside the fly-fishing world for their fragile beauty and short adult lifespan, often a single day to mate and die. The mayfly's poignant drama attracts poets and anglers alike, but anglers make the most of it.

Mayflies live more than 99% of their lives as nymphs on the river or lake bottom, filling many crucial roles in freshwater ecosystems as they feed and grow. They eventually emerge from the water as winged sub-adults called "subimagos" by scientists and "duns" by anglers. Duns evolved to be good at escaping the water, with a hydrophobic surface and hardy build, but they are clumsy fliers. Within a day or two they molt one last time into "imagos" or "spinners," the mature adults, a transformation captured in this photo series of a dun molting into a spinner. They have longer legs and tails, and sleeker, more lightweight bodies, giving them the airborne speed, agility, and long grasp they need for their midair mating rituals. They are usually darker than the duns and have shinier, more transparent wings. They die within minutes or hours after mating. Read more...

There are 748 more specimens...

The Discussion

CheddarDanApril 6th, 2010, 10:32 am
Posts: 1What is this; some sort of Diptera? The Trout seemed to love it! The one in the photo may have actually had darker wings. It was about a size 28, but others were larger.

http://web.utk.edu/~freeman/Hiwassee.html

Thanks in advance for any more info!
best
CD
GONZOApril 6th, 2010, 11:12 am
Site Editor
"Bear Swamp," PA

Posts: 1681
...some sort of Diptera?

Yes, it's a midge (Chironomidae).

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