Mesoscutum of Gasteruption assectator (Linnaeus) (26) and G. boreale (Thomson) (27).

 
 
  Part of: Johansson N, Achterberg C van (2016) Revision of the Palaearctic Gasteruption assectator aggregate, with special reference to Sweden (Hymenoptera, Gasteruptiidae). ZooKeys 615: 73-94. https://doi.org/10.3897/zookeys.615.8857