Posted by Dmitry Gavryushin on 09-08-2018 11:34
#6
For more exact ID you'd need to know number of flagellomeres.
O. tanaceti has been recently synonymized with
O. longicollis Rondani, 1840 (check Dorchin et al. (2015) - Morphological and Molecular Revision of the Genus
Ozirhincus (Diptera: Cecidomyiidae)—Long-Snouted Seed-Feeding Gall Midges on Asteraceae (PLoS ONE 10(7): e0130981. doi:10.1371/journal.pone.0130981))