Relationships
- Associated withCalifornia Gall Wasp (Andricus quercuscalifornicus)
- Associated withLive Oak Petiole Gall Wasp (Melikaiella flora)
- Associated withRed Cone Gall Wasp (Feron kingi)
detail: GallsBugGuide (2026): "Eriophyes mackiei is possibly the only oak-galling species that occurs on both 'black' and 'golden' oaks."- Larval host ofIo Moth (Automeris io)
- Larval host ofLappet Moth (Phyllodesma americana)
- Larval host ofMournful Duskywing (Erynnis tristis)
- Larval host ofPale Beauty (Campaea perlata)
- Larval host ofPolyphemus Moth (Antheraea polyphemus)
- Larval host ofWaved Sphinx (Ceratomia undulosa)
- Larval host ofYellow-haired Dagger Moth (Acronicta impleta)
- Fruit eaten byBlue Jay (Cyanocitta cristata)
- Fruit eaten byCalifornia Scrub-Jay (Aphelocoma californica)
- Seeds eaten byEastern Fox Squirrel (Sciurus niger)
- Seeds eaten byEastern Gray Squirrel (Sciurus carolinensis)
