Bug Identifier
Pubic louse
Community identification

Pubic louse

Pthirus pubis

Order & Family
Order: Psocodea; Family: Pthiridae
Size
1.1 mm to 1.8 mm
See this bug in the Encyclopedia

Natural Habitat

Coarse human body hair, primarily in the pubic region, but also eyelashes, eyebrows, armpits, or chests.

Diet & Feeding

Obligate ectoparasite; feeds exclusively on human blood several times a day.

Behavior Patterns

Slow-moving; attaches firmly to hair shafts with specialized claws. They cannot jump or fly and are usually transmitted through close physical contact.

Risks & Benefits

Causes intense itching (pruritus) due to an allergic reaction to saliva; can lead to secondary skin infections from scratching. No known benefits; strictly a parasite.