Falculiferidae (Astigmata, Perolichoidea) infesting Columbiformes in the West-Indies I. Genera Atyeonia, Byersalges, Hyperaspidacarus, Nanolichus, Pterophagoides and Pterophagus
  The genera Pterophagoides and Byersalges (Falculiferidae, Pterolichoidea), feather parasites of Columbidae