Head Louse Egg (Nit)

Scientific Name: Pediculus humanus capitis (egg)

Order & Family: Phthiraptera / Pediculidae

Size: 0.8 mm x 0.3 mm

Head Louse Egg (Nit)

Natural Habitat

Human scalp and hair shafts

Diet & Feeding

The adult lice feed on human blood; eggs do not feed

Behavior Patterns

Eggs are laid by adult female lice and are cemented to the base of hair shafts near the scalp. They hatch in about 6-9 days.

Risks & Benefits

Causes pediculosis (lice infestation), resulting in itching and discomfort. No known ecological benefits.

Identified on: 3/10/2026