Delia antiqua (Meigen 1826)

are host of

• Global Biotic Interactions: Pachycrepoideus vindemmiae (Rondani 1875) (Parasitoid wasp)
• Global Biotic Interactions: Spalangia erythromera
• Global Biotic Interactions: Spalangia endius Walker 1839 (Parasitoid wasp)
• Global Biotic Interactions: Spalangia nigra Latreille 1805 (Parasitoid wasp)

are parasitized by

• Global Biotic Interactions: Spalangia erythromera

are preyed upon by

• Global Biotic Interactions: Myotis lucifugus (Le Conte 1831) (little brown bat)
• Global Biotic Interactions: Myotis lucifugus (Le Conte 1831) (little brown bat)
• Global Biotic Interactions: Eptesicus fuscus (Palisot de Beauvois 1796) (Big Brown Bat)

eat

• Global Biotic Interactions: Allium cepa L. (garden onion)
• Global Biotic Interactions: Allium oschaninii O. Fedtsch.
• Global Biotic Interactions: Allium porrum

have pathogen

• Global Biotic Interactions: Octosporea antiquae I. V. Issi, Radishcheva & Dolzhenko 1983
• Global Biotic Interactions: Strongwellsea castrans A. Batko & J. Weiser 1965
• Global Biotic Interactions: Entomophthora muscae (Cohn) Fresen. 1856
• Global Biotic Interactions: Tolypocladium cylindrosporum W. Gams 1971
• Global Biotic Interactions: Beauveria bassiana (Bals.-Criv.) Vuill. 1912