Water Moth - Brahmaea wallichii

Japanese: イボタガ(水蠟蛾) - イボタガ（英語表記）Brahmaea wallichii

An insect of the Lepidoptera family, Ploceidae (illustration). It is a large moth with a wingspan of about 10 cm. It is found nationwide from Hokkaido to Yakushima. The wings have numerous wavy lines, and the half of the hind wings near the base is black. This family is a small one closely related to the Saturniidae family, and about 15 species are known from Africa, the southern tip of Italy, Southeast Asia to Japan. Only one species of ploce is found in Japan. The Japanese ploce moth emerges in the spring, is nocturnal, and often flies to lights. The larvae feed on the leaves of plants of the Oleaceae family, such as the privet tree, olive tree, ash tree, and Japanese laurel tree.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

鱗翅目イボタガ科の昆虫（イラスト）。大型のガで，開張10cm内外。北海道から屋久島まで全国的に分布する。翅には無数の波状線があり，後翅の基部に近い半分は黒い。この科はヤママユガ科に近縁な小さな科で，アフリカ，イタリアの南端，東南アジアから日本にかけて約15種が知られている。日本にはイボタガ1種しか分布していない。日本のイボタガは春に羽化し，夜行性でよく灯火に飛来する。幼虫はモクセイ科のイボタノキ，モクセイ，トネリコ，ネズミモチなどの葉を食べる。

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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