M.vvER. — Color and Color-Patterns 



PLATE ;J. 



To illustrate color-decelopmeni in Callosamia promethea and Danais plexipptu^. 



Fig. 24. Enlarged view of pupal wing of C. promethea in the "white stage." 



See p. 178. 

 Fig. 2o. Scale from wing of C. promethea in white stage of color-development, 



showing the total absence of pigment in the scale. See p. 178. 

 Fig. 26. Scale from light drab-colored area of mature wing of C. promethea. 

 Figs. 27, 36, 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 puf>al fore 



whig of $ C. promethea. See p. 179, 180. 

 Figs. 29, 30-35. Successive stages in the formation of color in the pupal wings 



of J C. promethea. (Figs. 29, 30-33, 35 fore wing; Fig. 34 hind 



wing.) See p. 179, 180. 

 Figs. 34 and 41. I'upal hind wings of C. promethea. respectively mature J 



and $. 

 Figs. 42-45. Successive stages in the color-development of D. plexippus. See 



p. 180-181. 



