Spruce Budworm vs Slender Pigeon Louse

Side-by-side species comparison

Attribute Spruce Budworm Slender Pigeon Louse
Scientific Name Choristoneura fumiferana Columbicola columbae
Order Lepidoptera Phthiraptera
Family Tortricidae Philopteridae
Size 20-28 mm wingspan 2-3 mm
Habitat Forests Farmland
Diet Omnivores Omnivores
Regions North America Europe, Asia, Africa, North America, South America, Oceania
Conservation Least Concern Least Concern

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.

Slender Pigeon Louse

A long slender louse found between the barbs of wing and tail feathers of pigeons and doves. It is one of the most studied louse-host systems in biology.

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Did You Know?

This louse has become a model organism for studying coevolution, as its evolutionary tree closely mirrors that of its pigeon host species.