Date of this Version
Taxonomic Report of the International Lepidoptera Society (March 22, 2021) 9(2): 1-3
Also available at https://lepsurvey.carolinanature.com/ttr/ttr-9-2.pdf
Also available at the Internet Archive, the Biodiversity Heritage Library, and Zobodat
The immature stages of the Bog Copper butterfly, Lycaena epixanthe, were described in detail by the author nearly forty years ago. Two different pupal colors were interpreted to represent distinct separate morphs with genetically-fixed incidences. Reassessment of the data discloses a pattern of progressive color change of each individual pupa throughout the pupal period. This transforming strategy is adaptive and may reduce predator recognition.