Six-spined Engraver Beetle vs Nut Weevil

Side-by-side species comparison

Attribute Six-spined Engraver Beetle Nut Weevil
Scientific Name Ips calligraphus Curculio nucum
Order Coleoptera Coleoptera
Family Curculionidae (Scolytinae) Curculionidae
Size 3.5–6.5 mm 6-9 mm
Habitat Forests Orchards
Diet Wood Feeders Omnivores
Regions Eastern North America Europe
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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Did You Know?

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

Nut Weevil

A small weevil with a slender, downward-curved snout used to bore into hazelnuts. The larva feeds inside the nut before dropping to the ground to pupate.

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Did You Know?

A tiny round hole in a hazelnut shell is the exit point of the fully grown larva.