title: Structure and function of the larval eye of the sawfly, Perga.
mesh_terms: D000818:Animals; D004175:Diptera / Q000166:cytology / Q000502:physiology; D005123:Eye / Q000166:cytology; D007814:Larva / Q000166:cytology / Q000502:physiology; D009799:Ocular Physiological Phenomena