1. Agui, N. and Hiruma, K., 1977, In vitro activation of neurosecretory brain cells in Mamestra brass~by B-ecdysone, Gen. Comp. Endocrinol. 33: 467.
2. Andrewartha, H. G., 1952, Diapause in relation to the ecology of insects, Bio. Dev. 27: 50.
3. Beck, S. D., 1968, “Insect Photoperiodism,” Academic Press, New York.
4. Bodnaryk, R. P., 1975, Interaction of cyclic nucleotides and ecdysterone in breaking the pupal diapause of the Bertha armyworm, Mamestra configurata Wlk., Life Sci. 16: 1411.
5. Bodnaryk, R. P., 1977, Stages of diapause development in the pupae of Mamestra configurata based on S-ecdysone sensitivity index, J. Insect Physiol. 23: 537.