↑Needham, J. G. (1904) New dragon-fly nymphs in the United States National Museum., Proceedings United States National Museum 27 (1371): 685-720, figs. 1-10, incl. pl. 38-44.
↑ 3.03.1Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)
↑Odonata: Catalogue of the Odonata of the World. Tol J. van , 1 Agosto 2008