Horse Sucking Louse vs Pubic Louse

Side-by-side species comparison

Attribute Horse Sucking Louse Pubic Louse
Scientific Name Haematopinus asini Pthirus pubis
Order Phthiraptera Phthiraptera
Family Haematopinidae Pthiridae
Size 2.5-3.5 mm 1.5-2 mm
Habitat Farmland Underground
Diet Blood Feeders Blood Feeders
Regions Worldwide Europe, Asia, Africa, North America, South America, Oceania
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.

Pubic Louse

A broad, crab-shaped louse that infests coarse body hair, primarily in the pubic region. It is transmitted through intimate contact.

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Did You Know?

Pubic lice are more closely related to gorilla lice than to human head lice, suggesting an ancient host-switching event between primate species.