Mayer. — Color and Color-Patterns. 
PLATE 3. 
To illustrate color-development in Callosamia promethea and Danais plexippus. 
Fig. 24. Enlarged view of pupal wing of C. promethea in the “white stage.” 
See p. 252. 
Fig. 25. Scale from wing of C. promethea in white stage of color-development, 
showing the total absence of pigment in the scale. See p. 252. 
Fig. 26. Scale from light drab-colored area of mature wing of C. promethea. 
Figs. 27, 30, and 33. Successive stages in the formation of color in pupal hind 
wing of C. promethea. 
Figs. 28, 37-40. Successive stages in the formation of color in the pupal fore 
wing of $ C. promethea. See p. 253, 254. 
Figs. 29, 30-35. Successive stages in the formation of color in the pupal wings 
of $ C. promethea. (Figs. 29, 30-33, 35 fore wing; Fig. 34 hind 
wing.) See p. 253, 254. 
Figs. 34 and 41. Pupal hind wings of C. promethea, respectively mature $ 
and $. 
Figs. 42-45. Successive stages in the color-development of D. plexippus. See 
p. 254-255. 
