Oil Beetle vs Spruce Budworm

Side-by-side species comparison

Attribute Oil Beetle Spruce Budworm
Scientific Name Meloe proscarabaeus Choristoneura fumiferana
Order Coleoptera Lepidoptera
Family Meloidae Tortricidae
Size 15-35 mm 20-28 mm wingspan
Habitat Beaches & Coastal Forests
Diet Omnivores Omnivores
Regions Europe North America
Conservation Near Threatened Least Concern

Oil Beetle

A large, flightless beetle with shortened elytra and a swollen abdomen. It secretes an oily, blistering compound called cantharidin when threatened.

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Did You Know?

Females can lay over 1,000 eggs, but larvae must hitch a ride on a solitary bee to survive.

Spruce Budworm

A small mottled grey-brown moth that is the most destructive forest pest in North America. Outbreaks can kill millions of hectares of spruce and fir forest.

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Did You Know?

A single outbreak in the 1970s-80s damaged more timber than all forest fires in Canada combined.