the world > animals > invertebrates > phylum Arthropoda > class Insecta > Rhopalocera (butterflies) > [noun] > family Nymphalidae > subfamily Ithomiinae > genus Polygonia > polygonia interrogationis (violet-tip)
violet-tip1881
1881 S. H. ScudderButterflies 167 The most conspicuous case [of dimorphism] is in the largest, the Violet-Tip (Polygonia interrogationis), where the two forms were once universally considered distinct species.