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Fly Fishing Getting Started - The Caddisflies

Published by Dave Kile [dkile] on 02/17/2014 (3221 reads)
Trout enjoy a wide array of food and insects being the more popular. While mayflies (Ephemeroptera) enjoy much of the spotlight, caddisflies (Trichoptera) are incredibly plentiful in waters across the region. Not always the preferred insect of the fly anglers mostly due to lack of familiarity.

caddisflyCaddis are a hardy insect and has thrived in streams that have been decimated with pollution. Streams like the Tulpehocken, Oil Creek and Casselman are are just a few streams known for their abundant caddis fly populations in our region. For many of these streams the caddisfly is so prolific that mayflies are an often afterthought for anglers.

The caddis behavior is a little less predictable and is certainly one of the reasons it is not as popular for many anglers. Many mayflies can be timed to within a few days and hours. The Green Drakes on Penn's Creek are revered by anglers the same way the "Swallows" of Capistrano are anticipated at the Mission San Juan Capistrano. Caddis not so much.

That is not to say great hatches of caddis are not enjoyed by anglers and trout, as there can be wonderful evenings and days with them covering a stream. Just as often there can be sporadic emergers happening with without much fanfare.

There are over 1200 species of caddis flies in the country. They range in size and colors covering the gambit of black, green, tan, cream and white bodies. The more popular Grannom hatch do arrive across much of the region at the end of April and are much anticipated by anglers and trout alike.

To get some understanding of their cycle it is as easy to do as by simply lifting a rock the next time out on the water.

caddisflyMany types of caddis larvae can be found at the bottom of the stream in self-made protected cases or roaming along the bottoms of streams. Some these species create protective cocoons made of small stones or sticks held together with silk like threads. This thread is also used to secure the larvae to the larger rocks or stream bed where they live.

As the caddisflies mature they reach the pupa stage were they hold-up inside their cases and prepare to emerge out as adults above the water. This transformation from water to wing is the most dangerous for all insects. The caddisfly rise from their cases often with the help of a small gas bubble pulling them towards the surface. Once there they emerge with their uniquely folded tent-style of wings they take flight.

The caddis return to lay their eggs either on the surface or by diving to the bottom depending on the species. Like when they emerge, this is the time when they are most susceptible to hungry trout. The cycle of life then returns as these eggs transform into the larvae again.

Like mayflies, caddis flies begin in ernest in April and are big part of many streams. Continued sporadic hatches can be found through the late Fall.

To learn and discuss more about mayflies on the site head over to the Hatch and Entomology Forum. Beginners can follow along and learn more in the Beginners Forum.

A great online site to follow and get deep into the latin is Troutnut and his Aquatic Insects of our Trout Streams. A must read!!
For further reading check out Gary LaFontaine's book Caddisflies.






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