![[image of larva]](../scans/bugs/dicosm3.gif)
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...
![[image of larva]](../scans/bugs-tweaked/dicosm5a.jpg)
![[image of larva]](../scans/bugs-tweaked/dicosm4a.jpg)
(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.
![[image of adult]](../scans/bugs/addico2.gif)
![[image of adult]](../scans/bugs/addico4.gif)
(body+wing length approx. 3.0 cm)
![[image of adult]](../scans/bugs-tweaked/addico1asm.jpg)
![[image of adult]](../scans/bugs-tweaked/addico3asm.jpg)
(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
dmason@zebu.uoregon.edu