myrmecophilous

/ˌmɜrmɪkəˈfɪləs/
adjective
  1. Having a symbiotic or beneficial relationship with ants; adapted to living with or among ants.
    • Myrmecophilous plants often provide shelter or food for ants in exchange for protection from herbivores.
    • The myrmecophilous butterfly larvae produce chemicals that mimic ant larvae, so ants feed them.
    • Many myrmecophilous insects have flattened bodies that help them move easily through ant tunnels.
Antonyms
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