Horse Sucking Louse vs White Pine Weevil

Side-by-side species comparison

Attribute Horse Sucking Louse White Pine Weevil
Scientific Name Haematopinus asini Pissodes strobi
Order Phthiraptera Coleoptera
Family Haematopinidae Curculionidae
Size 2.5-3.5 mm 5-7 mm
Habitat Farmland Farmland
Diet Blood Feeders Wood Feeders
Regions Worldwide North America
Conservation Least Concern Least Concern

Horse Sucking Louse

A large blood-sucking louse found on horses, donkeys, and mules. It prefers areas with long hair such as the mane, forelock, and tail base.

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Did You Know?

Infested horses develop a rough, dull coat and the constant irritation can cause significant weight loss.

White Pine Weevil

A small, mottled brown weevil that attacks the leading shoots of spruce and pine trees. Damage causes trees to grow crooked, devaluing timber.

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Did You Know?

By killing only the topmost leader shoot, it forces the tree to develop multiple competing tops, producing a characteristically forked trunk.