Chrysotoxum fasciolatum and C. intermedium new for the Dutch fauna (Diptera: Syrphidae) The first records of Chrysotoxum intermedium Meigen, 1822 and Chrysotoxum fasciolatum (De Geer, 1776) for the Netherlands are given. Specimens of both species were collected at the Sint Pietersberg near Maastricht (province of Limburg) in 1991 and 1998, respectively. Information is given on the habitat preference of the adult flies. A key is provided for the species of Chrysotoxum occurring in the Benelux. Both species are likely migrants and there are probably no established populations in the Netherlands.

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Nederlandse Faunistische Mededelingen

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Naturalis journals & series

Smit, J., Renema, W., & van Aartsen, B. (2001). De zweefvliegen Chrysotoxum intermedium en C. fasciolatum Nieuw voor de Nederlandse fauna (Diptera: Syrphidae). Nederlandse Faunistische Mededelingen, 15, 117–121.