Figure 6.

The relative size of two measured eyespots for Bicyclus sanaos (A, B) and B. anynana (C, D) on the ventral hindwing (mm; see Methods) as a function of developmental temperature, for females (circles) and males (triangles). Both species show a strong effect of temperature with smaller eyespots when reared in colder conditions. Females have consistently larger eyespots than males (See Table 1 and Supplementary Table 1). Investigating the coefficients of variation (standard deviation/mean) in the size of the second (E) and fifth (F) eyespot in B. sanaos (filled bars) and B. anynana (striped bars) in females and males at all three developmental temperatures (equal sample sizes for both species; see Methods) reveals higher variation at all temperatures for B. sanaos.