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About the Cover
Cover: Sexually dimorphic eyes have evolved numerous times in insects but the genetic changes involved have rarely been explored. The Lycaena rubidus male butterfly (background image) has a specialized dorsal eye that contains only ultraviolet- and blue-sensitive visual pigments and reflects a green-orange color (right inset). The female dorsal eye contains, in addition to the ultraviolet-sensitive visual pigment, a long wavelength-sensitive visual pigment co-expressed with the blue in R3-8 photoreceptor cells and reflects blue-yellow (left inset) (see article by M. P. Sison-Mangus, G. D. Bernard, J. Lampel and A. D. Briscoe, pp. 3079-3090). Photographs by M. P. Sison-Mangus and G. D. Bernard.
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