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symphilism
symphilism n. 
/ˈsɪmfl̩ɪz(ə)m/,
Brit. /ˈsɪmfᵻlɪz(ə)m/
, /ˈsɪmfᵻlɪz(ə)m//ˈsɪmfl̩ɪz(ə)m/U.S. /ˈsɪmfəˌlɪzəm/
[ < German symphilie (M. E. Wasmann 1896, in 3me Congr. Internat. Zool. 412), < Greek συμϕιλεῖν to love mutually + -ism suffix] Biology term for a kind of friendly symbiosis or commensalism existing between ants or termites and certain other insects which they feed and tend as guests, and which in some cases yield a sweet substance as food for them./ˈsɪmfəˌlɪzəm/ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Insecta > [noun] > member of > defined as social insect or association of > friendly symbiosis
symphily1899
symphilism1903
1903 Nature 12 Feb. 351/1 The phenomenon of ‘symphilism’, that is to say, the harbouring of insects, &c., of various foreign species in the nests of ants and termites. It is stated that the number of symphilous arthropods exceeds a hundred.
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