Brown Willow Beetle vs Stag Beetle

Side-by-side species comparison

Attribute Brown Willow Beetle Stag Beetle
Scientific Name Galerucella lineola Lucanus cervus
Order Coleoptera Coleoptera
Family Chrysomelidae Lucanidae
Size 4-6 mm 25-75 mm (males with mandibles)
Habitat Rivers & Streams Woodlands
Diet Herbivores Wood Feeders
Regions Europe Europe
Conservation Least Concern Near Threatened

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.

💡

Did You Know?

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

Stag Beetle

Europes largest beetle. Males have dramatically enlarged mandibles resembling antlers, used in wrestling contests for females. Larvae develop in rotting wood for 3-7 years.

💡

Did You Know?

Male stag beetles spend up to seven years as larvae feeding on decaying wood underground before emerging for just a few weeks as adults to find a mate.