Bug Identifier
Linen Head Louse (Egg Case/Nits)
Community identification

Linen Head Louse (Egg Case/Nits)

Pediculus humanus capitis

Order & Family
Order: Psocodea; Family: Pediculidae
Size
Nits/eggs are approximately 0.8 mm long; adults are 2-3 mm.
See this bug in the Encyclopedia

Natural Habitat

Found on the human scalp and hair, often transferred to pillows, clothing, or linens in contact with the head.

Diet & Feeding

The adult insect feeds exclusively on human blood; eggs are non-feeding remains or casings.

Behavior Patterns

Nits are glued to hair shafts or fibers; they cannot jump or fly. They hatch within 7-10 days into nymphs that require blood meals to survive.

Risks & Benefits

Causes intense itching and scalp irritation. Not known to spread disease, but heavy infestations can lead to secondary skin infections from scratching.