Neptis philyra (three-lined butterfly)

Japanese: ミスジチョウ(三条蝶) - ミスジチョウ（英語表記）Neptis philyra

An insect of the Nymphalidae family of the Lepidoptera order. It is a medium-sized butterfly with a wingspan of 6 to 7 cm. Females are larger than males, and individuals from warm and lowland areas are larger than those from cold and mountainous areas. Its wings are long and black with white markings, and when it stands still with its wings spread, the white markings look like the Chinese character for three, hence the name. The markings on the underside are almost a direct replacement of the black background with reddish brown. It is found in mainland Japan, but is rare in Hokkaido. It is common in low mountain areas and canyons, and flies and glides slowly. It does not gather on flowers or tree sap, and is probably sucking the secretions of aphids that have fallen on leaves, etc.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

鱗翅目タテハチョウ科の昆虫。中型のチョウで，開張は6～7cm。雄より雌，寒･山地産より暖･平地産の個体が大きい。翅は横長で，黒地に白い紋があり，翅を広げて静止すると白い紋が漢字の三のように見えるところからこの名がある。裏面の斑紋は，表面の黒地がそのまま赤褐色に置き換わったものに近い。日本本土に産するが，北海道には少ない。低山地や峡谷に多く，緩やかに飛び，滑空する。花や樹液には集まらず，おそらく葉などに落ちたアブラムシ分泌液を吸っているものと思われる。

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

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