Obikareha (band dead leaves) - Obikareha (English spelling) Malacosoma neustria

Japanese: オビカレハ(帯枯葉) - オビカレハ（英語表記）Malacosoma neustria

An insect of the Lepidoptera family, Lasiocampidae (illustration). A small moth, the wingspan of males is about 2.5 cm, while that of females is about 3.5 cm. Males are light yellowish brown, while females are brown, with two horizontal stripes on their forewings. Widely distributed from Europe to Taiwan and Japan. Very common throughout Japan, it appears once a year around May-June, and often flies to lights. The larvae feed on the leaves of plum, cherry, peach, apple, rose, willow, and poplar trees. They are often found on plum trees planted as garden trees, so they are called plum caterpillars, and because they live in a communal nest by spinning silk on the branches and disperse at the end of their life, they are also called tent caterpillars.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

鱗翅目カレハガ科の昆虫（イラスト）。小型のガで，開張は雄で2.5cm内外，雌は3.5cm内外。雄は薄い黄褐色で，雌は茶褐色，前翅に2本の横線がある。ヨーロッパから台湾，日本まで広く分布する。日本全国にごくふつうで，年1回5～6月ころ発生し，よく灯火に飛来する。幼虫はウメ，サクラ，モモ，リンゴ，バラ，ヤナギ，ポプラなどの葉を食べる。庭園樹として植えられるウメにしばしば発生を見るのでウメケムシと呼ばれるし，枝上に糸を張って共同の巣をつくってすみ，終齢で分散する習性があるので，テンマクケムシ(天幕毛虫)とも呼ばれる。

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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