Louse (Head, Body, or Pubic)

Humans, specifically on hair shafts, skin, or clothing fibers depending on the species.

Hematophagous; they feed exclusively on human blood several times a day.

They are wingless, crawling insects that cannot jump or fly. They attach their eggs (nits) to hair or clothing fibers with a specialized glue. They are highly specialized to live on human hosts and die quickly if separated from a host.

Risks include intense itching, skin irritation, and secondary bacterial infections from scratching. Body lice can transmit serious diseases like typhus, though head lice do not. They offer no ecological benefits to humans.