"I have adopted a general title, "The Colours of Animals," in order to indicate the contents of this volume, although the vast majority of the examples are taken from insects, and indeed almost invariably from a single order, the Lepidoptera. The examples are, however, employed merely to illustrate principles which are of wide application." Воспроизведено в оригинальной авторской орфографии издания 1890 года (издательство "D. Appleton and Company"). Это и многое другое вы найдете в книге The Colours of Animals, their meaning and use, especially considered in the case of insects (Poulton, Edward Bagnall)