Hog Louse vs Large Turkey Louse

Side-by-side species comparison

Attribute Hog Louse Large Turkey Louse
Scientific Name Haematopinus suis Chelopistes meleagridis
Order Phthiraptera Phthiraptera
Family Haematopinidae Philopteridae
Size 4-6 mm 3-5 mm
Habitat Farmland Farmland
Diet Blood Feeders Omnivores
Regions Europe, Asia, Africa, North America, South America North America, Europe
Conservation Least Concern Least Concern

Hog Louse

The largest louse found on domestic animals, exclusively parasitizing pigs. It feeds on blood and is most commonly found behind the ears and in skin folds.

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Did You Know?

At up to 6 mm long, the hog louse is the largest sucking louse known, easily visible to the naked eye on infested pigs.

Large Turkey Louse

The largest louse found on domestic turkeys, feeding on feather material. It prefers the breast and thigh feathers of its host.

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Did You Know?

Benjamin Franklin studied this louse while advocating for the turkey as America's national bird.