All photographs copyright (2003-2013) by Kris H. Light

<strong>Swarming Chironomid Midges</strong>
These tiny flies can make an autumn afternoon hike interesting when you have to walk through a swarm of them. Fortunately, even though they look like mosquitoes, they do not bite! They are often seen near ri...
Swarming Chironomid Midges
These tiny flies can make an autumn afternoon hike interesting when you have to walk through a swarm of them. Fortunately, even though they look like mosquitoes, they do not bite! They are often seen near rivers and slow-moving creeks. I photographed this swarm next to the river below Norris Dam. The swarms are made up mostly of males listening for the frequency of a female's wingbeats. Mated females lay their eggs in water. I often find the tiny worm-like larvae in pond and lake water when I teach my microscope class.
See next photo for a larger swarm.

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