Prenolepis compete with other ants by being active in far colder conditions. I think they can just survive Argentines because of this. It’s not so much that they’re fighting them back or something.
Actually studies show their chemical defenses freak the heck out of Argentine ants.
This was a great article, though I believe I had to go back and read more of the original literature. It does have cool videos.
https://www.kqed.org...ne-ant-invaders
Past & Present
Veromessor pergandei, andrei, stoddardi; Novomessor cockerelli
Camponotus fragilis, Camponotus sansabeanus (inactive), vicinus, laevigatus/quercicola, CA02
Pogonomyrmex subnitidus, P. californicus (inactive)
Liometopum occidentale (inactive); Prenolepis imparis; Myrmecocystus mexicanus (inactive); Tetramorium sp. (inactive); Lasius sp.
Termites: Zootermopsis angusticollis, and a box of drywood termites that can't be seen
Isopods: (most no longer keeping) A. gestroi, granulatum, kluugi, maculatum, vulgare; C. murina; P. hoffmannseggi, P. haasi, P. ornatus; V. parvus, P. pruinosus, T. tomentosa
Spoods: (no longer keeping) Phidippus sp., other