1. Alves, L. F., Chemical ecology and the social behaviour of animals, Prog. Chem. Org. Nat. Prod., 53 (1988) 1–85.
2. Meinwald, J., Origins of insect defensive compounds and pheromones—de novo biosynthesis versus direct acquisition. Paper presented at the 32nd IUPAC Congress, Stockholm, 2–7 August 1989.
3. Karlson, P. & Lüscher, M., ‘Pheromones’, a new term for a class of biologically active substances. Nature, 183 (1959) 55–6.
4. Nordlund, D. A., Semiochemicals: a review of the terminology. In Semiochemicals: Their Role in Pest Control, ed. D. A. Nordlund, R. L. Jones & W. J. Lewis. J. Wiley & Sons, New York, 1981, pp. 13–28.
5. Kohnle, U. & Vité, J. P., Bark beetle predators: strategies in the olfactory perception of prey species by clerid and trogositid beetles. Z. Ang. Ent 98 (1984) 504–8.