title: Fly photoreceptors. II. Spectral and polarized light sensitivity in the drone fly Eristalis.
mesh_terms: D000818:Animals; D004175:Diptera / Q000502:physiology*; D010786:Photoreceptor Cells / Q000502:physiology*; D012168:Retinal Pigments / Q000502:physiology; D013057:Spectrum Analysis; D014796:Visual Perception / Q000502:physiology
chemical_list: D012168:Retinal Pigments