Lice, body with stool (Pediculus humanus)
These are
Pediculus humanus
, or body lice. Other types of lice infest the scalp, head (
Pediculus humanus capitis
), or the pubic area (
Phthirus pubis
). Some body lice may carry diseases such as epidemic typhus, relapsing fever, or trench fever. (Image courtesy of the Centers for Disease Control and Prevention.)