Cypress Sawfly vs Brown Willow Beetle

Side-by-side species comparison

Attribute Cypress Sawfly Brown Willow Beetle
Scientific Name Monoctenus juniperi Galerucella lineola
Order Hymenoptera Coleoptera
Family Diprionidae Chrysomelidae
Size 6-8 mm 4-6 mm
Habitat Gardens Rivers & Streams
Diet Herbivores Herbivores
Regions Europe Europe
Conservation Least Concern Least Concern

Cypress Sawfly

A small sawfly with pectinate antennae in males whose green larvae feed on juniper and cypress foliage. Heavy infestations can discolor and thin ornamental junipers.

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Did You Know?

This is one of the few diprionid sawflies that feeds on cupressaceous conifers rather than the more typical pine or spruce hosts.

Brown Willow Beetle

A small brown beetle that feeds on willow leaves and can cause significant defoliation. Has been used as a biological control agent for purple loosestrife in North America.

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Did You Know?

A close relative was deliberately introduced to North America as biological control for invasive purple loosestrife.