1. Anderson, D.T., Wood, E.C.: The morphological basis of embryonic movements in the light brown apple moth,Epiphyas postvittana (Walk.) (Lepidoptera: Tortricidae). Aust. J. Zool.16, 763?793 (1968).
2. Bowers, W.S., Fales, H.M., Thompson, M.J., Uebel, E.C.: Juvenile hormone: identification of an active compound from balsam fir. Science154, 1020?1021 (1966)
3. Butt, F.H.: Embryology of the milkweed bug,Oncopeltus fasciatus (Hemiptera). Cornell Univ. Agr. Exp. Sta. Mem.283, 1?43 (1949)
4. Cobban, R.H.: Evolutionary trends in Heteroptera. Part I. Eggs, architecture of the shell, gross embryology and eclosion. The Netherlands: Centre for Agricultural Publishing and Documentation, Wageningen, 1968
5. Enslee, E.C.: Experimental studies of oogenesis and embryogenesis in the Hemipteran,Pyrrhocoris apterus. Ph.D. thesis, Harvard University 1973