Brassy Willow Beetle vs Miyake Stag Beetle

Side-by-side species comparison

Attribute Brassy Willow Beetle Miyake Stag Beetle
Scientific Name Phratora vitellinae Dorcus rectus
Order Coleoptera Coleoptera
Family Chrysomelidae Lucanidae
Size 3-5 mm 20-54 mm
Habitat Rivers & Streams Forests
Diet Detritivores Sap Feeders
Regions Europe, Northern Asia East Asia, Japan/Korea
Conservation Least Concern Least Concern

Brassy Willow Beetle

A small, shiny metallic bronze to greenish beetle that feeds on willow and poplar. Adults overwinter in leaf litter and emerge in spring to colonize new willow growth.

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Did You Know?

Larvae secrete salicylaldehyde, a chemical obtained from salicin in willow leaves, which smells like antiseptic and deters predators.

Miyake Stag Beetle

A medium-sized stag beetle found across Japan and Korea, known as 'ko-kuwagata.' More compact than other stag beetles with shorter mandibles. Common in lowland forests.

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Did You Know?

This species is one of the easiest stag beetles to breed in captivity, making it a popular starter species for Japanese beetle hobbyists.