kentromorphism
From ZooTerms (Dictionary of Invertebrate Zoology)
kentromorphism (noun; Greek kentor, piercer; morphe, form): (Arthropoda: Insecta) A change brought about by environmental stimuli (high or low population density) in phasmatids, locusts, the larva of Lepidoptera and a few other insects, that cause coloration and pattern differences, anatomical proportions, physiology and behavioral differences
