M.  Dacke, Byrne, M. J., Scholtz, C. H., and Warrant, E. J., ?Lunar orientation in a beetle?, Proceedings of the Royal Society of London Series B-Biological Sciences, vol. 271, pp. 361-365, 2004.

M.  Dacke, Nordstrom, P., Scholtz, C. H., and Warrant, E. J., ?A specialized dorsal rim area for polarized light detection in the compound eye of the scarab beetle Pachysoma striatum?, Journal of Comp. Physiology A, vol. 188, pp. 211-216, 2002.

N.  Gokan, ?The compound eye of the dung beetle, Bolbocerosoma nigroplagiatum (Coleoptera: Scarabaeidae)?, Applied Entomology and Zoology, vol. 32, pp. 109-118, 1997.