Elm sawfly

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Jan 18, 2026

Pest Control Canada

Elm sawfly

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6895. Hello, I found this bug on a rose bush in southern Quebec, Canada (it almost looks a little like a hornet). First time that we’ve seen them around here and we’ve seen about 3 of them this summer (2020). Mansonville, Quebec. Canada

Number 6895. This is an elm sawfly, Cimbex americana (Hymenoptera: Cimbicidae). They are harmless to humans, and their larvae often are mistaken for caterpillars. Click here for more detailed information.