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Giant Case-Maker Caddisflies


An aquatic larval form; the case varies based on habitat and species. The case also provides anchorage and protection through both camouflage and durability. Upon pupation they close the case with a perforated door to allow water in for respiration.


Along the shores of a mesotrophic lake in the Laurentian Mixed Forest ecoregion of Minnesota.


Identified to family (Phryganeidae); taken through a microscope.

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Spotted by

Baxter, Minnesota, USA

Spotted on Apr 10, 2012
Submitted on Apr 18, 2012

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