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| Booth's Sulphur (Colias tyche boothii), male. Baker Lake, Nun. 7.VIII.47 T.N. Freeman | Hecla Sulphur (Colias hecla hecla), male. Firth River, YT. 20.VII.56 E.F. Cashman |
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| Labrador Sulphur (Colias nastes aliaska), male. Cambridge Bay, Nun. 6.VIII.50 G.K. Sweatman | Canada Sulphur (Colias canadensis), male. British Mts., 69° 13´N, 140° 05´W, 320 m., YT. 18-20.VI.84 G. & M. Wood & J.D. Lafontaine |
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