These bugs are only found in the Pacific Northwest, particularly in Oregon, Washington, British Columbia, and Northern California. They are important to fish in all stages of their development...
(case length approx 3.5 cm)
(body length approx 2.5 cm)
I took a picture of the uncased larva because sometimes they decide to leave their cases and drift to a new home. Fish like that.
(body+wing length approx. 3.0 cm)
(the scale on the ruler is in centimeters)
-- These are two extra pictures showing exactly how big this bug is, and also and example of how caddisflies fold their wings in a tentlike fashion over the top of their bodies.
The McKenzie Page last update: November 7, 1995