Anchor Moth - Pterodecta felderi

Japanese: イカリモンガ(錨紋蛾) - イカリモンガ（英語表記）Pterodecta felderi

An insect (illustration) of the Lepidoptera family, Acaridae, found mainly in the tropical regions of Asia. Acarid moths, found throughout most of Japan, have red, anchor-shaped markings on their forewings, a vivid color on the underside, and fly during the day, so they are often mistaken for butterflies, but they can be distinguished by their whip-shaped antennae, not club-shaped. When they are stationary, they fold their wings behind them like butterflies. They fly actively in the daytime in mountainous areas twice a year, in spring and summer. Their wings span about 3.5 cm. The larvae feed on the leaves of Dryopteris inodensis (Dryopteridaceae), and overwinter as adults.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

アジアの熱帯に主として分布する鱗翅目イカリモンガ科の昆虫（イラスト）。日本のほとんど全域に分布するイカリモンガは，前翅に錨のような形をした赤色紋をもち，裏面ははでな色彩をして昼飛性のため，よくチョウとまちがえられるが，触角が棍棒状でなく，むち状なので区別できる。彼らが静止するときはチョウと同じように翅を背面にたたむ。春と夏の2回，山間地で昼間活発に飛ぶ。開張3.5cm内外。幼虫はイノデ(オシダ科)の葉を食べ，成虫で越冬する。

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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