Terellia tussilaginis, the gall fly, is a species of tephritid or fruit flies in the family Tephritidae.[5]
This species is present in most of Europe, in European Russia and in the East Palearctic ecozone.[6][7]
These flies inhabit meadows, gardens and where the host plants grow.
Terellia tussilaginis can reach a body length of about 5 millimetres (0.20 in). These fruit flies have a pale green yellow body with distinctive brown banding on its wings.[8] The costal cell is completely hyaline. Katepisternum shows reddish spots. The anterior half of mesonotum is reddish to brown. Tergite 4 is usually black.[9]
Adults can be seen from June to August.[8] The larvae live in the flowerheads of Arctium lappa, Arctium minus, Arctium tomentosum and Cirsium vulgare, feeding on them and causing galls to form.[8][10][11]
Terellia tussilaginis, the gall fly, is a species of tephritid or fruit flies in the family Tephritidae.