1. Blum, M.S., 1985. Fundamentals of Insect Physiology. John Wiley and Sons, New York.
2. Browne, D.J., Scholtz, C.H., 1998. A phylogeny of the families of Scarabaeoidea (Coleoptera). Systematic Entomology. In press.
3. Dawes, C J., 1971. Biological Techniques in Electron Microscopy. Barnes and Noble, New York.
4. Friedländer, M., Scholtz, C.H., 1993. Two different patterns of interrupted spermatogenesis in winter diapause and summer quiescence in the desert beetle, Omorgus freyi. Journal of Morphology 218, 347–358.
5. Hinton, H.E., 1964. Sperm transfer in insects and the evolution of haemocoelic insemination. In: Highman, K.C. (Ed.), Insect Reproduction: Symposia of the Royal Entomological Society of London, Vol. 2, Royal Entomological Society of London, London, pp. 95–107.