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Casebearer larva

Jan 18, 2026

Pest Control Canada

Casebearer larva

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5901 What type of bug is this. found it in the bathroom. there’s more then 1

This looks like a household casebearer (aka ‘plaster bagworm’), Phereoeca uterella (Lepidoptera: Tineidae). Related to clothes moths, these basically are nuisance pests, feeding primarily on old cobwebs and the like. See http://tinyurl.com/hhc6w4v for more detailed information.  Ed Saugstad, retired entomologist; Sinks Grove, WV.

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