1. Beadford, G. A. H.: A Synoptic Check-List and Host-List of the Ectoparasites found on South Afrikan Mammalia, Aves and Reptilia (Second Edition) 18th Rep. of the Director of Veterinary Services and Animal Industry. Union South Afrika 1932.
2. Bequaert, J.: Medical Report of the Hamilton Rice 17th expedition to the Amazonas. Howard Inst. Trop. Biol. Cambridge1926
3. - Ticks collected by the American Museum Congo Expedition 1909–1915. Amer. Mus. Mov. New York1930.
4. - Synopsis des Tiques du Congo Belge. Rev. zool.-bot. afric. Terrueren30 (1931).
5. Birula, A.: Trav. Soc. Natur. St. Petersburg, sect. zool. et physiol.24 II (1894).