Terellia ruficauda is a species of fly in the family Tephritidae, the gall flies. It is found in the Palearctic.Fauna EuropaeaBei-Bienko, G.Y. & Steyskal, G.C. (1988) Keys to the Insects of the European Part of the USSR, Volume V: Diptera and Siphonaptera, Parts I, II. Amerind Publishing Co., New Delhi .Séguy, E. (1934) Diptères: Brachycères. II. Muscidae acalypterae, Scatophagidae. Paris: Éditions Faune de France 28 Bibliotheque Virtuelle Numerique pdf The larvae feed on Cirsium arvense. .
Distribution Central & North Europe, East Russia, Introduced to Canada, United States.
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