The subject of my address is one that has been rarely touched by American entomologists, although offering one of the most attractive and richest fields for research and discovery, as connected with it are many problems of biologic and philosophical importance, which if solved, would throw much light upon many of the moted questions of the day -evolution of species, development of sexes, specialization of organs, transmission of acquired characters, adaptability to environment, etc.
Ashmead, William H., "The Habits of the Aculeate Hymenoptera. I" (1894). An. Paper 287.