Red photoreceptor in butterflies.
D000818:Animals; D003118:Color Perception; D004596:Electroretinography; D005071:Evoked Potentials; D007313:Insecta / Q000502:physiology*; D008027:Light; D010786:Photoreceptor Cells / Q000502:physiology*; D011830:Radiation Effects; D012160:Retina / Q000528:radiation effects; D014795:Visual Pathways / Q000502:physiology