Dermanyssus ambulans Thorell, 1872: 164.
Euhaemogamasus ambulans.— Keegan, 1951: 228, fig. 41, 46 (partim); Willmann, 1952: 402.
Gamasus ovalis L. Koch 1878: 121, pl. V, figs 3, 3a.
Haemogamasus alaskensis Ewing 1925: 138.
Haemogamasus alaskensis.— Vitzthum, 1930: 397; Keegan, 1951: 213, fig. 43; Strandtmann & Wharton, 1958: 129; Allred & Beck, 1966: 12, figs 45, 102, 110, 211, 226, 329, 543.
Haemogamasus ambulans.— Bregetova, 1955: 274, 280, fig. 518, 524–525, 551–554; Bregetova, 1956a: 147, 153, figs 308– 310, 333–335; Lange, 1958: 209, pl. LXXV, Zh; Strandtmann & Wharton, 1958: 130; Allred & Beck, 1966: 14, figs 49 etc (in total 28 figures); Evans & Till, 1966: 244, fig. 54; Allred, 1969: 109, fig. J-12; Redington, 1970: 665; Zemskaya, 1973: 104; Williams et al., 1978: 263, figs 10, a –n; Nikulina, 1987: 224, fig. 116 (8, 12); Senotrusova, 1987: 48, fig. 22; Haitlinger, 1988: 644, figs 14, 15; Lundquist, 1990: 332, figs 2, F, 3, F; Goncharova et al., 1991: 60; Mašán & Fend’a, 2010: 76, figs 64, 65, 73, 81–83; Fyodorova & Kharadov, 2012: 277.
Haemogamasus avisugus Vitzthum, 1930: 396; Willmann, 1952: 405.
Haemogamasus avisugus.— Keegan, 1951: 222.
Haemogamasus ellipsoideus Asanuma, 1952: 89.
Haemogamasus pavlovskyi Bregetova, 1949: 179, figs 16–18.
Haemogamasus sternalis Ewing, 1933: 3, pl. 1, fig. 2.
Haemogamasus twitchelli Ewing 1925: 142.
Hypoaspis ambulans.— Trägårdh, 1904: 33, figs 55–58.
Laelaps (?) ambulans.— Trägårdh, 1902: 61.
Laelaps ovalis.— Trägårdh, 1902: 61.
Laelaps stabularis var. proximus Berlese, 1903a: 260.
Type locality. Greenland, Quanersoit ( Disko Island).
Type specimens. Williams et al. (1978: 265) believe that the types of Dermanyssus ambulans are “lost or destroyed”. However, some types of Arachnida from Quanersoit described in Thorell (1872) are kept in ZMUU ( Saaristo & Marusik, 2003), so the type specimens of D. ambulans may also be extant.
Type host. Unknown (not stated in the original description).
Host range. Haemogamasus ambulans is an opportunistic mite able to live in nests and shelters of many species of small mammals, both insectivores and rodents ( Allred, 1969; Whitaker & Wilson, 1974; Goncharova et al., 1991; Whitaker et al., 2007). It may be found also in birds’ nests. It is impossible therefore to designate a mammal species as its principal host.
Distribution. Worldwide ( Williams et al., 1978). In Asiatic Russia, Hg. ambulans occurs throughout the entire region. The northernmost collections were made in Yamal Peninsula, Kolhyma River delta, Wrangel Island (Belyaev, 1969; Goncharova et al., 1991). All these localities are situated far north of the Arctic Circle.