Average gall diameter in galls with E. serratulae (3512 galls), with unparasitized U. cardui (3449 galls) and with E. robusta plus empty cells (4288 galls).

 
 
  Part of: Zwölfer H, Böheim M, Beck E (2015) Eurytoma serratulae and E. robusta (Hymenoptera, Eurytomidae): complementary host exploitation strategies of coexisting parasitoids and their impact on the host Urophora cardui. Journal of Hymenoptera Research 42: 47-62. https://doi.org/10.3897/JHR.42.8847