Giant stonefly Pest Control Canada

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Jan 18, 2026

Pest Control Canada

Giant stonefly

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6799. April 2020 outdoors rural area walked around, did not see it land nor take off. Maple Ridge, BC. Canada

Number 6799. This is a giant stonefly (Plecoptera: Pteronarcidae; Pteronarcys sp.). They are harmless, and their aquatic larvae are an important component of the freshwater food web. Click here for detailed information on these insects.