Male¬†Synergus¬†sp. (J. Bowdrey).  
  Part of: Forshage M, Bowdrey J, Broad G, Spooner B, van Veen F (2017) Checklist of British and Irish Hymenoptera - Cynipoidea. Biodiversity Data Journal 5: e8049. https://doi.org/10.3897/BDJ.5.e8049