| Terellia | |
|---|---|
| Terellia serratulae | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Tephritidae |
| Subfamily: | Tephritinae |
| Tribe: | Terelliini |
| Genus: | Terellia Robineau-Desvoidy, 1830 |
| Type species | |
| Terellia palpata Robineau-Desvoidy, 1830 | |
| Synonyms | |
Terellia is a genus of tephritid or fruit flies in the family Tephritidae.
Terellia ruficauda feeds on Canada thistle has been reported to be the most effective biological control agent for that plant. Its larvae parasitize the seed heads of the plant feeding solely upon fertile seed heads.