The Biology of the Termite Castes

Abstract

The phylogenetic mode of origin of termite castes has an important bearing on theories of evolution and may be determined by studies of fossils, or taxonomic and morphological studies of the termites and their phylog-eny, or by brecding experiments within the species; a plea is made for such studies by biologists. A discussion of the biology of termites, the damage they cause, and 2 views of the origin of the castes follows[long dash]namely, whether the origin of castes is due to extrinsic or intrinsic factors. Data on taxonomy, phylogeny as evidenced by paleontology, taxonomy and biology and the phylogeny of the termite castes as evidenced in their ontogeny are outlined in some detail. The role of inquilines, types of termite nests, intestinal protozoa and their occurrence and importance, are briefly mentoned. A 2-page bibliography of important recent publications is included.