Insect physiology is a specialized discipline within the larger framework of animal physiology. Almost every graduate program in Entomology has a requirement for an insect physiology course and an up to date textbook is required. Students using insects as model organisms should also be interested in this textbook. The textbook primarily describes physiology but there is quite a bit of biochemistry, which adds to the text as a resource. Physiology and biochemistry should be taught together; in order to understand physiology the biochemistry behind the physiology must also be understood. This 2nd edition textbook does a nice job of presenting information to students.
Available at: http://works.bepress.com/russell_jurenka/6/