Suctorial mandibles, [453], [456]
Super-Orders, [177]
Supplementary Ichneumon-flies, [558]
Supra-oesophageal ganglion, [117]
Sutures, [92]
Swarms: of locusts, [292]-[299];
of may-flies, [441];
of Termites, [362]
Sympathetic nervous system, [120];
absent, [353]