At least two major parallels between cognitive metaphors in human cognition and mimicry among animals justify viewing the two phenomena as isomorphic. First-from the semiotic point of view-the argument is that both metaphor and mimicry are cases of semiotic transfer (etymologically: metaphor) of the identity / sign of the source onto the perceived identity / sign of the target.
This identity transfer, in turn, trig-gers appropriate changes in the response (behavior) of the surrounding (human or animal) interpreters (e.g. preda-tors). Semiotically, the mimicry turns the body of its bearer into a sign of something else, resulting in the interpret-ers' (e.g. predators') perception of species X as species Y-hence, a type of embodied sign and cognitive metaphor.
Second, ecologically, a species occupying one niche (e.g. a moth: non-venomous, herbivorous primary consumer) is perceived and identified as an occupant of a different niche (e.g. a hornet: venomous, omnivorous predator). Thus, a potential predator's Umwelt is affected by its perceiving a hornet moth as "a hornet" where there is, in fact, a moth, and its response to this stimulus will not be predation but avoidance.
In terms of CMT, we could call this a biosem-iotic metaphor (bio-metaphor), e.g. "A MOTH IS A HORNET" or "PREY IS A PREDATOR".