Pubic lice - Infection of the pubic hair by crab lice, Phthirius pubis.    From Wordnik.com.  [CreationWiki - Recent changes [en]] Reference

Phthirius, and on the Structure of the Mouth in Pediculus "(Annals and.    From Wordnik.com.  [Our Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and Houses] Reference