what's the difference between chewing lice and sucking lice
They are very host-specific and do not tend to leave their preferred animal. Lice spend their entire life cycle on the pet. Lice (singular: louse) are insects belonging to either the Mallophaga for chewing lice and Anoplura for sucking lice. There are about 460 species of sucking lice and 3,000 species of chewing lice. Transmission of lice is by direct contact with an infested pet.