Hence the resemblances belonging to the first category are commonly termed "Batesian mimicry," and those belonging to the second category " Mullerian mimicry," or more properly " Mullerian resemblance."
Over and over again extended knowledge on this point and inferences drawn from other facts have shown the certainty or probability of examples of mimicry being in reality " Mullerian," which were previously accepted without question as " Batesian."
So far as our information at present extends the resemblance between these two insects is a simple case of mimicry in the Batesian sense of the word.
This phenomenon is termed " aggressive mimicry " as opposed to the Batesian and Mullerian phenomena, which are termed " protective mimicry."
A few possible cases of aggressive mimicry are enumerated in the following summary of some of the recorded cases of mimicry in different classes of the animal kingdom; but the phenomenon is of comparatively rare occurrence, and the supposed instances may be susceptible of other interpretations, excluding them altogether from mimicry, or bringing them under the Batesian or Miillerian interpretation of the phenomenon.