Blue Willow Beetle vs Waterhouse Stag Beetle

Side-by-side species comparison

Attribute Blue Willow Beetle Waterhouse Stag Beetle
Scientific Name Phratora vulgatissima Phalacrognathus muelleri waterhouseorum
Order Coleoptera Coleoptera
Family Chrysomelidae Lucanidae
Size 3-5 mm 25-65 mm
Habitat Farmland Mountains
Diet Herbivores Wood Feeders
Regions Europe, Western Asia New Guinea
Conservation Least Concern Not Evaluated

Blue Willow Beetle

A small, metallic dark blue to blue-green beetle commonly found on willow trees. It can cause significant defoliation in willow biomass plantations grown for bioenergy.

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Did You Know?

It is considered one of the most important pests of short-rotation willow coppice plantations grown for renewable energy in northern Europe.

Waterhouse Stag Beetle

A subspecies of the rainbow stag beetle from New Guinea with even more vivid metallic coloring. Highly prized by collectors.

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Did You Know?

They display some of the most intense structural coloration found in any beetle species.