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^Morris, Roger K. A. (1999). Hoverflies of Surrey. Surrey Wildlife Trust. p. 244. ISBN0-9526065-3-4.
^Stubbs, Alan E.; Falk, Steven J. (1983). British Hoverflies: An Illustrated Identification Guide. British Entomological & Natural History Society. p. 253, xvpp.
^Van Veen, M.P. (2004). Hoverflies of Northwest Europe, Identification Keys to the Syrphidae (hardback). Utrecht: KNNV Publishing. p. 254. ISBN90-5011-199-8.