To properly know and place each insect, one must have an exact knowledge of its structure,-insect morphology; an understanding of the uses of these structures and the causes of their appearance,—insect physiology; an idea of the ways in which these have been modified through time,—insect phylogeny; how they are developed,- insect embryology and metamorphosis. Insect biology and insect morphology are of equal importance to the student of systematic entomology and this is illustrated in the growth, transformation, adaptation and sexual needs of certain species such as Papilio marcelus Cram., Cyllene robiniae (Forst.), Cyllene caryae Gahan, and in such genera as Maldcosoma, Euphydras (Lepidoptera), and Colpeodes (Coleoptera).
Document Type: Research Article
Publication date: October 1, 1926
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