Head of same female specimen of G. dolichoderum Schletterer showing effect of the middle of the vertex (A) or the stemmaticum (= ocellar triangle; B) in plane of the objective of the binocular microscope.

 
 
  Part of: van Achterberg K, Talebi A (2014) Review of Gasteruption Latreille (Hymenoptera, Gasteruptiidae) from Iran and Turkey, with the description of 15 new species. ZooKeys 458: 1-187. https://doi.org/10.3897/zookeys.458.8531