Six-spined Engraver Beetle vs Nebria Streamside Beetle

Side-by-side species comparison

Attribute	Six-spined Engraver Beetle	Nebria Streamside Beetle
Scientific Name	Ips calligraphus	Nebria brevicollis
Order	Coleoptera	Coleoptera
Family	Curculionidae (Scolytinae)	Carabidae
Size	3.5–6.5 mm	10-14 mm
Habitat	Forests	Rivers & Streams
Diet	Wood Feeders	Omnivores
Regions	Eastern North America	Europe, Introduced to North America and New Zealand
Conservation	Not Evaluated	Least Concern

Six-spined Engraver Beetle

A pine-infesting bark beetle found across eastern North America. It is named for the six spine-like teeth on its rear wing covers.

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Males excavate a nuptial chamber under the bark where they mate with up to four females.

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

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