1. For a survey see: Biochemistry of Sensory Functions. 25th Mosbacher Kolloquium der Gesellschaft für Biologische Chemie (ed. L. Jaenicke). Berlin-Heidelberg-New York: Springer 1974
2. Priesner, E.: Fortschr. Zool. 22, 49 (1973); cf. Mykytowycz, R.: Naturwissenschaften 59, 133 (1972)
3. Wilson, E.O.: Sociobiology. Cambridge, Mass.: Harvard Univ. Press. 1975
4. Silverstein, R.M., in: Chemicals controlling insect behaviour, p. 21 (ed. M. Beroza). New York: Academic Press 1970
5. Thuret, G.: Ann. Sci. Nat. Biol., Ser. IV 2, 197 (1854)