Fig. 5. Male A. Levana, summer form (Prorsa).
Fig. 6. Female A. Levana, summer form (Prorsa).
Figs. 7 to 9. Intermediate forms (Porima), artificially bred from the first summer generation.
Figs. 10 and 11. Male and female Pieris Napi, winter form, artificially bred from the summer generation; the yellow ground-colour of the underside of the hind wings brighter than in the natural winter form.
Figs. 12 and 13. Male and female Pieris Napi, summer form.
Figs. 14 and 15. Pieris Napi, var. Bryoniæ, male and female reared from eggs.
[Plate II].
Fig. 16. Papilio Ajax, var. Telamonides, winter form.
Fig. 17. P. Ajax, var. Marcellus, summer form.
Fig. 18. Plebeius Agestis (Alexis, Scop.), German winter form.