la Salle, John, Gevork Arakelian, Rosser W. Garrison, and Michael W. Gates. 2009. “A New Species of Invasive Gall Wasp (Hymenoptera: Eulophidae: Tetrastichinae) on Blue Gum (Eucalyptus globulus) in California”. Zootaxa 2121 (1). Auckland, New Zealand:35–43. https://doi.org/10.11646/zootaxa.2121.1.4.