Cyclophragma yamadai (Yamada withered leaves)

Japanese: ヤマダカレハ(山田枯葉) - ヤマダカレハ（英語表記）Cyclophragma yamadai

An insect of the Lepidoptera order, Lasiocampidae family. Wing span is about 7cm in males and about 10cm in females. Males have brown wings, while females have light brown wings with a slight yellowish tinge. The forewings have 5-6 serrated transverse lines and a yellowish-white pattern near the base. The antennae are comb-like, but the females have shorter combs. They are found in Honshu, Shikoku, Kyushu, and the Korean Peninsula west of the Kanto region. Adults emerge late in autumn and often fly to lights. The larvae are caterpillars that reach a body length of 9cm and are confusingly similar to the bark of the food tree. They feed on the leaves of Fagaceae trees, such as Quercus acutissima, Quercus serrata, Quercus serrata, Quercus serrata, and Quercus serrata.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

鱗翅目カレハガ科の昆虫。翅の開張，雄は7cm内外，雌は10cm内外。雄の翅は茶褐色，雌では淡褐色で，やや黄色みを帯び，前翅には5～6本の鋸歯状横線があり，基部の近くに黄白色紋がある。触角は櫛歯（くしば）状だが，雌では櫛歯が短い。関東以西の本州，四国，九州，朝鮮半島に分布する。成虫は秋おそく出現し，よく灯火に飛来する。幼虫は体長9cmに達する毛虫で，食樹の樹皮とまぎらわしいほどよく似ている。クヌギ，コナラ，アベマキ，クリ，カシなどブナ科の葉を食べる。

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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