Müllerianmimicry

Mül•le′ri•an

(or Mul•le′ri•an) mim′icry

(myuˈlɪər i ən, mʌ-, mɪ-)

n.
the resemblance in appearance of two or more unpalatable species, that are avoided by predators to a greater degree than any one of the species would be otherwise.
[after German-born Brazilian biologist Fritz Müller (1821–97), who described it in 1878; see -ian]