Red Spotted Purple Butterfly - Red Spotted Purple Butterfly

...The underside of the spring type, especially the female's hind wings, tends to turn white, but the underside of the summer and autumn types is not much different from the upper side. The closely related species, H. assimilis , is a specialty of Amami Oshima and occurs several times a year. It is slightly larger than the Gomadara butterfly, with longer wings and longer white stripes.

*Some of the terminology that refers to the "Red Spotted Purple Butterfly" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…春型，とくに雌の後翅では裏面の白化傾向が著しいが，夏型および秋型では表面とあまり変わらない。近縁種のアカボシゴマダラH.assimilisは，奄美大島の特産で，年数回発生する。ゴマダラチョウよりやや大型で翅も横長，白紋も長い。…

※「アカボシゴマダラ」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報