

1. Queen Alexandra's Sulphur (Colias alexandra alexandra), male. Rocky Mountain Nat. Park, Alta. 13.VIII.30
2. Queen Alexandra's Sulphur (Colias alexandra alexandra), female D. Rocky Mountain Nat. Park, Alta. 13.VIII.30
3. Queen Alexandra's Sulphur (Colias alexandra columbiensis), female. Jesmond, 3500 ft., 7.VII.37 J.K. Jacob
4. Queen Alexandra's Sulphur (Colias alexandra columbiensis), female D. Jesmond, 4000 ft., BC. 20.VII.37 J.K Jacob