larch sawfly

insect

Also known as: Pristiphora erichsonii

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Last updated

June 30, 2026

Quick Summary

The larch sawfly (Pristiphora erichsonii) is a destructive red-and-black insect found in North America and Europe. Its whitish larvae are known to defoliate larch trees, making it a significant pest. Sawflies, in general, belong to the order Hymenoptera and are characterized by their wasplike appearance and caterpillar-like larvae, which possess fleshy prolegs. The larch sawfly is classified within the typical sawflies family, Tenthredinidae.12

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sawfly
The larch sawfly (Pristiphora erichsonii) is sometimes highly destructive to larch trees in the United States and Canada. The elm leaf miner (Fenusa ulmi) is sometimes a serious pest of elm trees.
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The larch sawfly (Pristiphora erichsonii) is sometimes highly destructive to larch trees in the United States and Canada. The elm leaf miner (Fenusa ulmi) is sometimes a serious pest of elm trees.
Read More