Introduction 1 Three divergent clades of lice can infest human: Head lice, body lice and pubic lice (Amin and A meen, 2018). The human head louse, Pediculus humanus Var. capitis De Geer, 1778, is a wingless, blood feeding parasitic insect of human that affect millions of people in d ifferent ages particularly children in all over the world (Doroodgar et al., 2011). Head lice are more prevalent in the developing countries especially in the crowded places with low socioeconomic and poor hygiene conditions (Akhter et al., 2010). Pediculus humanus capitis lives on the hu man scalp where it attaches to the hair shafts, nourish on blood and complete all the stages of its life cycle: egg, ny mph and adult