Insects and Spiders - native

Pacific Sawfly (Cimbex pacifica) on Jul 15, 2019

Originally reported as Insect or Spider (unknown species) (various)

Submitter does not have a specimen

Description of specimen

Was very large. Want to say it was about an inch possibly slightly bigger.

Commentary

This is a native sawfly, adults lay eggs in willow leaves and may chew on branch tips. Larvae are large and fleshy, yellow-green, caterpillar-like and feed on willow leaves. This insect is not abundant and not a pest.

Christine Buhl
July 15, 2019, 5:52 a.m.

Resources

Pacific Sawfly information on iNaturalist

Location

Clinging to like on the sand in about quarter inch of water

Expert Reviewer

Christine Buhl
Oregon Dept. of Forestry

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