R. D.  Price and Hellenthal, R. A., ?Taxonomy of Philopterus (Phthiraptera : Philopteridae) from the Corvidae (Passeriformes), with descriptions of nine new species?, Annals of the Entomological Society of America, vol. 91, no. 6, pp. 782 - 799, 1998.

D. H.  Clayton and Price, R. D., ?Taxonomy of New World Columbicola (Phthiraptera: Philopteridae) from the Columbiformes (Aves), with descriptions of five new species?, Annals of the Entomological Society of America, vol. 92, no. 5, pp. 675 - 685, 1999.

R. D.  Price, Clayton, D. H., and Hellenthal, R. A., ?Taxonomic review of Physconelloides (Phthiraptera: Philopteridae) from the Columbiformes (Aves), including descriptions of three new species?, Journal of Medical Entomology, vol. 36, no. 2, pp. 195 - 206, 1999.

D. H.  Clayton and Price, R. D., ?Taxonomic review of Cotingacola (Phthiraptera: Philopteridae) from the cotingas (Passeriformes: Tyrannidae), with descriptions of two new species?, Journal of Medical Entomology, vol. 35, no. 5, pp. 732 - 739, 1998.

R. D.  Price and Clayton, D. H., ?Review of Formicaricola (Phthiraptera: Philopteridae) from ground antbirds (Passeriformes: Formicariidae)?, Annals of the Entomological Society of America, vol. 88, no. 6, pp. 718 - 721, 1995.

D. H.  Clayton, Gregory, R. D., and Price, R. D., ?Comparative ecology of neotropical bird lice (Insecta, Phthiraptera)?, Journal of Animal Ecology, vol. 61, no. 3, pp. 781 - 795, 1992.