Angoumois grain moth

Japanese: バクガ(麦蛾) - バクガ（英語表記）Angoumois grain moth

An insect of the Lepidoptera, Gelechiidae family. Its wingspan is 1.3-1.7 cm. Its wings are long and slender, with longer hairs on the hind wings than on the left. It is pale yellow, and may have one or two dark markings on the forewings. It is distributed almost worldwide. In some areas, it occurs once a year, but in warm areas, it occurs five or six times a year, and in houses and warehouses that are heated 24 hours a day, it occurs all year round. It lays eggs on wheat ears in fields in early summer, and the larvae that feed on the wheat grains grow in barns and warehouses. The moth also lays eggs indoors, gathering several grains of unhulled or brown rice and feeding on them.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

鱗翅目キバガ科の昆虫。開張1.3～1.7cm。翅は細長く，縁毛は後翅では翅より長い。淡黄色で，前翅に1～2個の暗色紋をもつことがある。ほとんど全世界に分布する。年1回発生の地域もあるが，温暖地では年に5～6回発生するところもあり，24時間暖房の家屋や倉庫では，年中発生が続く。初夏に畑の麦穂に産卵し，麦粒に食入した幼虫は，納屋や倉庫内で成長する。ガは屋内でも産卵し，もみ米や玄米などを数粒集めてつづり食害する。

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