A revision of the British species of the genus Phthiracarus Perty 1841 (Cryptostigmata: Euptyctima) Author Parry, B. W. text Bull. British Mus. nat. Hist., Zool. ser. 1979 35 323 363 http://unknown journal article ORI10637 Phthiracarus minimarginatus Woolley 1954 Moss and grass under aspen, Mount Meeker Camp Ground, Boulder, Colorado, USA USNM, Washington