K.  Jordaens, Goergen, G., Kirk-Spriggs, A. H., Vokaer, A., Backeljau, T., and De Meyer, M., ?A second New World hoverfly, Toxomerus floralis (Fabricius) (Diptera: Syrphidae), recorded from the Old World, with description of larval pollen-feeding ecology?, Zootaxa, vol. 4044, no. 4, pp. 567 - 576, 2015.