Osborne, R. S., N. C. Leppla, and L. S. Osborne. “Predatory Gall Midge (unofficial Common name), Feltiella Acarisuga (Vallot) (Insecta: Diptera: Cecidomyiidae): EENY269/IN549, 6/2002”. EDIS, vol. 2004, no. 16, Nov. 2004, doi:10.32473/edis-in549-2002.