Colour vision and the physiology of the superposition eye of a butterfly (Hesperiidae).
D000818:Animals; D003118:Color Perception; D004596:Electroretinography; D007313:Insecta; D008722:Methods; D009799:Ocular Physiological Phenomena; D009899:Optic Lobe, Nonmammalian / Q000502:physiology; D010786:Photoreceptor Cells / Q000502:physiology