Extension > Garden > Diagnose a problem > What insect is this? > General/curiosity insects > Insects with obvious wings: less than ¾ inch long > Caddisflies
Trichoptera order (numerous species)
Jeff Hahn, University of Minnesota Extension
Description: 1/16 - 1 1/2 inch long (most are between 1/4 - 1 inch long). Moth-like with wings folded tent-like over the body. Antennae are thin and as long as or longer than the body. Usually drab colored, especially brown or gray.
Where/When: Found near lakes, streams, and wetlands. Attracted to light and can be found around buildings.
Significance: Does not harm people or property.
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