strong power of localization, [73].
—— rubrocinctum, [74].
Social wasps, general habits, [3];
color sense, [5];
sense of smell, [8];
affecting plant distribution, [11];
number in one nest, [12].
Solitary wasps, general habits, [15].
Sphex, habits noted by Fabre, [69].
—— ichneumonea, [56];