1. Hinks, C. F., Trans. Roy. ent. Soc.118 (1966) 375.
2. Miller, T., in: Comprehensive Insect Physiology, Biochemistry and Pharmacology, vol. 3. Eds G. A. Kerkut and L. I. Gilbert. Pergamon Press, New York 1985.
3. Wiggelsworth, V. B., Insect Physiology, 8th edn. Chapman and Hall, London 1984.
4. Davey, K. G., J. Insect Physiol.9 (1963) 375.
5. Davey, K. G., J. Insect Physiol.8 (1962) 259.