Hey J. (2006). On the failure of modern species concepts. Trends in ecology & evolution, 21(8), 447–450. https://doi.org/10.1016/j.tree.2006.05.011
• Bateman. P.W., Fleming P.A. There will be blood: autohaemorrage behavior as part of the defence repertoire of an insect. Journal of zoology. 2009, no. 278, pp.342-348.
Roubik.W. (1982). Obligate Necrophagy in social bee. Science, vol.217, No.4564, pp. 1059-1060.