Psocodea (booklice and lice)

Life > Eukaryotes > Opisthokonta > Metazoa (animals) > Bilateria > Ecdysozoa > Panarthropoda > Tritocerebra > Phylum: Arthopoda > Mandibulata > Atelocerata > Panhexapoda > Hexapoda > Insecta (insects) > Dicondyla > Pterygota > Metapterygota > Neoptera > Eumetabola > Paraneoptera

Booklice are small insects with a characteristic swollen head. They feed mainly on fungus but also on unicellular algae , lichens and bits of plant and insect tissue. Some species can be pests of stored products. Lice (Phthiraptera) evolved from booklice.