Mayer. — Color and Color-Patterns. 
PLATE 9. 
Diagrams to illustrate color-variations. 
The various colors are laid off at definite intervals along the axis of abscissae, 
and the ordinates represent the number of species which exhibit the various 
colors. 
Fig. 97. Represents the color-variations of the “ inner rufous ” area of the fore 
and hind wings in the Danaoid Heliconidae. The full line represents 
the variations of the fore wing. The dotted line those of the hind 
wing. The closeness of these two lines shows the intimate relations 
between the color-variations of the “ inner rufous ” areas upon fore 
and hind wing. See p. 292. 
Fig. 98. The full line represents color-variations of “ inner yellow ” spot of fore 
wings in Danaoid Heliconidae. The dotted line represents same for 
“middle yellow.” It is apparent that the “inner yellow” is more 
variable than the “‘outer yellow,” and also that the variations of 
both are quite similar to those of the “inner rufous.” See p. 293. 
Fig. 99. Color-variations of “ inner rufous ” areas of Acraeoid Heliconida e. 
The full line represents the fore wing and the dotted line the hind 
See p. 292. 
wing. 
