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Insects of the Stream An overview of the insects important to the successful fly angler Why know the bugs? Insects are the fishes main diet! Certain insects thrive during specific times Insects hatch during specific times Insects go through life cycles Even having a beginners knowledge about insects will greatly increase your success on the water Life Cycle Idea General idea of the lifecycle Very similar among all insects, with some differences that can be studied later on What this means… Is you can fish with different techniques targeting not only different types of insects, but their different stages of life Adults, nymphs, etc… Major groups Mayflies Stoneflies Caddisflies Terrestrials Midges Other Mayflies Usually 3 tails on both adults and nymphs Adults have large upright wings Nymphs have gills on their abdomen …more mayflies Mayfly imitation Stoneflies Usually 2 tails on the nymph Adults have large wings laying flat against the body Nymphs have gills on their thorax, sort of in their ‘armpits’ …more stoneflies Stonefly imitation Caddisflies Adults have large wings laying over back in a tent style Nymphs live in self built cases of different materials, some are free living w/o a case …more caddisflies Caddisfly imitation Terrestrials Terrestrials represent any insects living on land that my fall or fly onto the water where they may be fed upon These include beatles, ants, hoppers, etc… …more terrestrials Terrestrial imitation Midges Midges can be mistaken as mosquitoes They are tiny, two winged insects Larva looks like small worms Craneflies are bigger …more midges Other insects Include hellgrammites and fresh water scuds Other aquatic life Other aquatic life exists that fish feed on. Not limited to insects… Worms, leaches, snails, slugs, crayfish, etc… What you can learn more about Specifics on species Hatch Charts BWOs, Sulfurs, March Browns, Drakes Know what time of year/day to expect them http://www.lycoming.edu/orgs/flyco/streams.html Every single insect doesn’t have a specific fly pattern. The gold-ribbed hares ear pattern mimics a wide array of insect nymphs thriving in the water
