Mallophaga

from The Collaborative International Dictionary of English v.0.48

Mallophaga \Mal*loph"a*ga\ (m[a^]l*l[o^]f"[.a]*g[.a]), n. pl.
   [NL., fr. Gr. mallo`s a lock of wool + fagei^n to eat.]
   (Zool.)
   An extensive group of insects which are parasitic on birds
   and mammals, and feed on the feathers and hair; -- called
   also {bird lice}. See {Bird louse}, under {Bird}.
   [1913 Webster]