Nebria Streamside Beetle vs Toadflax Stem Weevil

Side-by-side species comparison

Attribute Nebria Streamside Beetle Toadflax Stem Weevil
Scientific Name Nebria brevicollis Mecinus janthinus
Order Coleoptera Coleoptera
Family Carabidae Curculionidae
Size 10-14 mm 3-4 mm
Habitat Rivers & Streams Grasslands
Diet Omnivores Herbivores
Regions Europe, Introduced to North America and New Zealand Europe
Conservation Least Concern Least Concern

Nebria Streamside Beetle

A very common European ground beetle often found near streams and in damp habitats. It is active year-round including during mild winter nights.

💡

Did You Know?

It is one of very few ground beetles that breeds in autumn and is active throughout the winter months.

Toadflax Stem Weevil

A dark metallic blue-purple weevil that feeds on toadflax species. Successfully used as a biological control agent for invasive Dalmatian toadflax in North America.

💡

Did You Know?

Released in North America as biological control, where it has successfully suppressed invasive Dalmatian toadflax.