Choosing the title of a talk is often a difficult task.

Being naturally optimistic, I wanted to speak concerning some recent advances in our knowledge of insects. But coming to Canada with a talk bearing such a title would seem like carrying coals to Newcastle, since many of the recent American advances in entomological knowledge have been made on this side of the line, and, in the English-speaking world as a whole, most of the advances have been made under the British flag. Furthermore, being naturally a timid soul, I feared discrimination in the selection of examples.