Covariation of log-transformed body part size (eyes) and cell size (facets). The solid lines represent the regressions between seasonal forms and the dotted lines represent the regressions between sexes. Black circles represent males and white circles represent females. The scale was adjusted so that a slope of 1.0 corresponds to a 45° angle. Error bars indicate 95% CI of means.
Everett et al. BMC Evolutionary Biology 2012 12:232 doi:10.1186/1471-2148-12-232