A revision of the British species of the genus Phthiracarus Perty 1841 (Cryptostigmata: Euptyctima) Parry, B. W. Bull. British Mus. nat. Hist., Zool. ser. 1979 35 323 363 Michael, 1898 Michael 1898 Arachnida Phthiracaridae Hoploderma GBIF Animalia Oribatida 35 356 Arthropoda species lurida  Under bark, Urbana, Illinois, USA USNM, Washington