Grain moth - Nemapogon granellus

Japanese: コクガ(穀蛾) - コクガ（英語表記）Nemapogon granellus

An insect of the Lepidoptera family, Truncateidae. A small moth with a span of about 1cm. The larvae are pests of stored grains, dried foods, and dried fruit, living in houses and warehouses, and have been artificially transported to almost all parts of the world where they have become endemic. In the wild, the larvae parasitize mushrooms. In Europe, they also cause damage to the wine industry, as the larvae bore holes in the corks of stored wine, causing the wine to spoil. In Japan, the larvae appear from summer to autumn. [Inoue Hiroshi]

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

鱗翅目ヒロズコガ科の昆虫。開張1cmくらいの小さいガ。幼虫が貯蔵穀物，乾燥食品，乾果などの害虫で，家屋や倉庫の中にすみ，人為的にほとんど全世界へ運ばれ土着してしまった。野外では，幼虫はキノコ類に寄生する。ヨーロッパでは，ブドウ酒産業にも被害を及ぼす。幼虫が貯蔵中のブドウ酒のコルクに穴を開け，酒を変質させてしまうからである。日本では，幼虫は夏から秋に出現する。【井上寛】

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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