Cactus-feeding insects and mites

Insects and mites that attack cactus have been the subject of considerable inquiry during recent years in the United States of America, India, Ceylon, South Africa, and Madagascar, as well as in Australia. This publication deals with the species considered to be definitely restricted to the family Cactaceae; it does include, however, certain dipterous scavengers which, although not restricted to these host plants, breed in rotting cactus so generally that they should be classed as cactus feeders. Secondly, the discussiion of the life histories, habits, and distribution of the various insects is based on the results of investigations.