Female Stenichneumon culpator (Schrank, 1802), the most abundant hibernating ichneumonid wasp in the Low Countries, often hibernates in spots or galleries made by beetles (left). Here it is in hibernation next to Carabus violaceus Linnaeus, 1758; Belgium, Westouter (Rodeberg), 24 January 2022. Patrick Debeuf.

 
 
  Part of: Verheyde F, Quicke DLJ (2022) ´╗┐Review of adult diapause in ichneumonid wasps (Hymenoptera, Ichneumonidae). Journal of Hymenoptera Research 91: 185-208. https://doi.org/10.3897/jhr.91.83618