Mayer. — Wing Scales. 
PLATE 7. 
Figures 52-70, Callosamia promethea. Figures 71-74, Danais plexippus. 
Fig. 53. Enlarged view of a fore wing in the “ white stage.” 
Fig. 54. Scale from the wing represented in Figure 53 (highly magnified) 
Fig. 55. Scale from light drab area of the mature wing. 
Fig. 56. Under surface of hind wing of male, showing the beginning of mature 
coloration. 
Figs. 57,58. Under surface of fore wing of female and male respectively, to show 
first appearance of mature coloration. 
Figs. 59-64. Successive stages in the color development of upper surface of wings 
in male moth. (Figures 59-61, 64, of fore wing; Figures 62, 65, of 
hind wing.) 
Fig. 65. Lower surface, hind wing, female moth. 
Figs. 66-69. Successive stages in the color development of the upper surface of 
fore wing in female moth. 
Fig. 70. Upper surface, hind wing, female moth. 
Figs. 71-74. Successive stages in the color development of upper surface of fore 
wing in Danais plexippus. 
