The Collaborative International Dictionary of English v.0.48:

Anoplura \An`o*plu"ra\ ([a^]n`[-o]*pl[=u]"r[.a]), n. pl. [NL.,
   fr. Gr. 'an priv. + 'o`plon weapon, sting + o'yra` tail.]
   (Zool.)
   A group of insects which includes the lice.
   [1913 Webster] anopsia
   anopia

WordNet (r) 3.0 (2006):

Anoplura
    n 1: sucking lice [syn: Anoplura, order Anoplura]