↑ Ball, S.G.; Morris, R.K.A. (2000). Provisional atlas of British hoverflies (Diptera, Syrphidae). Monks Wood, UK: Biological Record Centre. pp. 167 pages. ISBN 1-870393-54-6.
↑ Van Veen, M.P. (2004). Hoverflies of Northwest Europe, Identification Keys to the Syrphidae. Utrecht: KNNV Publishing. pp. 254. ISBN 90-5011-199-8.