Syrphidae literature

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We found 2 records. keyword "Sphaerophoria rueppelli" and ordered by year

Speight, M.C.D. (1976): Sphaerophoria rueppellii (Dipt., Syrphidae) new to Ireland, with figures of its surstyli - Ir.Nat.J. 18, 332-334
Allen, A.A. (1981): Recent increase of Sphaerophoria rueppellii Wied. (Dipt.: Syrphidae) in N.W.Kent - Entomol.Rec.J.Var. 93, 82