1. Allemand, R., Cohet, Y. and David, J. (1973) Exp. Gerontol.
8, 279–283.
2. Ashburner, M. and Thompson, J. N. (1978) in The Genetics and Biology of Drosophila (eds. M. Ashburner and T. R. F. Wright), Academic Press, New York, vol. 2a, 1–109.
3. Bodenheimer, F. S. (1928–1929) Materialen zur Geschichte der Entomologie (2 vols). Junk, Berlin.
4. Boesiger, E. (1968) C. R. Séanc. Soc. Biol.
162, 358–362.
5. Boulétreau-Merle, J. (1978) Oecologia
35, 319–342.