Tetranychus canadensis (McGregor, 1950) (Fig. 11) Type specimens examined, Canada: Approximately 40 specimens on one slide, of which about 20 are circled on the slide; the single male on this slide is assumed to be the holotype. Ontario, 1938, ex Apple Malus domestica (Rosaceae), Type 1733, 38-12699. In USNM. Non-type specimens examined, U.S.A.: 2 females, 2 males, Washington D.C., 13.vi.1961, E.W. Baker, ex Horse Chestnut Aesculus hippocastanum (Sapindaceae). In USNM. 1 male, Estey, Michigan, 13.vii.1962, D.M. Tuttle, ex Staghorn Sumach Rhus typhina (Anacardiaceae), det. D.M. Tuttle. 3 females, Mesa, Arizona, 16.x.1964, R.D. Gerhart, ex Arizona Ash Fraxinus vekutina (Oleaceae), det. D.M. Tuttle (two slides). 1 male, Yuma, Arizona, 6.v.1967, ex Fieldbind Weed Convolvulus arvensis (Convolvulaceae). 1 female, Somerton, Arizona, 21.v.1962, G.L. Arviza, ex White [or Silver] Horse Nettle, Bull-nettle, Trompetilla Solanum elaeagnifolium (Solanaceae). All in QDPI.

Published as part of SEEMAN, OWEN D. & BEARD, JENNIFER J., 2011, Identification of exotic pest and Australian native and naturalised species of Tetranychus (Acari: Tetranychidae), pp. 1-72 in Zootaxa 2961 (1) on page 24, DOI: 10.11646/zootaxa.2961.1.1, http://zenodo.org/record/10095728