For information about controlling lice infestations, please see Controlling Lice . Click here for more information. Body Lice Body lice tend to aggregate where clothing most frequently touches the skin. For example, you might find lice on underwear, areas around the armpits, the waistline, and neck. Lice frequently remain on clothing but can also be found on the skin.
Body lice prefer to lay their eggs along the seams of clothing.
These insects are highly dependent on the presence of their host. The optimum temperature for eggs and adults is about the temperature of a human body. Eggs do not hatch when temperatures are above 100oF or below 73oF, and adults can only live for at most 10 days without feeding. Lower or higher temperatures that can occur away from the human body may kill lice. Lice are most often transmitted from person to person by direct contact, and they can be easily dislodged from a lousy person onto an uninfested person.