↑Suhling, F.; Sahlén, G.; Gorb, S.; Kalkman, V.J.; Dijkstra, K-D.B.; van Tol, J. (2015). "Order Odonata". In Thorp, James; Rogers, D. Christopher (eds.). Ecology and general biology. Thorp and Covich's Freshwater Invertebrates (4 ed.). Academic Press. pp. 893-932.
↑Ruppert, Edward E.; Fox, Richard, S.; Barnes, Robert D. (2004). Invertebrate Zoology, 7th edition. Cengage Learning. p. 745.