Pubic Louse vs Human Head Louse

Side-by-side species comparison

Attribute Pubic Louse Human Head Louse
Scientific Name Pthirus pubis Pediculus humanus capitis
Order Phthiraptera Phthiraptera
Family Pthiridae Pediculidae
Size 1.5-2 mm 2-3 mm
Habitat Underground Underground
Diet Blood Feeders Blood Feeders
Regions Europe, Asia, Africa, North America, South America, Oceania Europe, Asia, Africa, North America, South America, Oceania
Conservation Least Concern Least Concern

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.

Human Head Louse

An obligate ectoparasite of the human scalp that feeds on blood several times per day. It spreads through direct head-to-head contact.

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Did You Know?

Head lice have co-evolved with humans for millions of years, and DNA analysis of lice has helped trace ancient human migration patterns.