Baryscapus orchestidis

are parasitoids of

• Global Biotic Interactions: Ageniaspis testaceipes (Ratzeburg 1848)
• Global Biotic Interactions: Apanteles circumscriptus
• Global Biotic Interactions: Apanteles lacteus (Nees 1834)

have host

• Global Biotic Interactions: Parornix petiolella (Frey 1863)
• Global Biotic Interactions: Parornix periolella
• Global Biotic Interactions: Rhynchaenus quercus Fabricius & J. C. 1801
• Global Biotic Interactions: Phyllonorycter pyrifoliella (Gerasimov 1933)
• Global Biotic Interactions: Kermes quercus (Linnaeus 1758)