Intertaxon relationships
species
Plagionotus detritus (Linnaeus, 1758)
Carpinus betulus L. - European Hornbeam 
Castanea sativa Mill. - Sweet Chestnut
Salix caprea L. - Goat Willow
Spathius curvicaudis Ratzeburg, 1844
Xorides filiformis (Gravenhorst, 1829)
Batesian mimicry complex
Vespa crabro Linnaeus, 1758 - European Hornet