Pachyneuron aphidis

are parasitoids of

• Global Biotic Interactions: Aphidius colemani Viereck 1912 (Parasitic wasp)
• Global Biotic Interactions: Pauesia unilachni (Gahan 1926)
• Global Biotic Interactions: Aphidius sonchi Marshall 1896
• Global Biotic Interactions: Diaretiella rapae
• Global Biotic Interactions: Aphidius uzbekistanicus Luzhetzki 1960

have host

• Global Biotic Interactions: Eriosoma lanigerum (Woolly Apple Aphid)
• Global Biotic Interactions: Rhopalosiphum maidis (Fitch 1856) (Corn leaf aphid)
• Global Biotic Interactions: Metopolophium (Metopolophium) albidum Hille Ris Lambers 1947
• Global Biotic Interactions: Macrosiphum (Macrosiphum) euphorbiae (Thomas & C. 1878) (Potato Aphid)
• Global Biotic Interactions: Merophyas divulsana Walker 1863