Coleoptera, Lampyridae. Body length 7-10 mm. Body black, covered with short hairs of the same color. When viewed from behind, most of the head is hidden under the front edge of the prothorax. Compound eyes are large, antennae filamentous. Prothorax is pale red, densely punctuated, with a broad black stripe in the middle. Each elytra has four longitudinal ridges. The two distal abdominal segments are yellowish-white light-emitting organs. Larvae live in rice paddies and marshes, feeding on freshwater snails such as the Japanese river snail. Inhabits Hokkaido, Honshu, Shikoku, Kyushu, the Kuril Islands, Korea, and northern China. Similar to the Genji firefly, but smaller, and easily distinguished by the thick black stripe in the middle of the prothorax. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
鞘翅目ホタル科。体長7~10mm。体は黒色で,同色の短毛におおわれる。頭部は背面から見ると大部分が前胸前縁の下に隠れる。複眼は大きく,触角は糸状。前胸背は淡赤色で密に点刻され,中央部に幅広い黒条がある。上翅にはそれぞれ4条の縦隆起がある。腹部末端2節は黄白色の発光器になっている。幼虫は水田や沼などにすみ,カワニナなどの淡水生の巻貝類を食べる。北海道,本州,四国,九州,千島列島,朝鮮,中国北部に分布する。ゲンジボタルに似ているが,それより小型で,前胸背中央の黒条が太いので容易に区別される。
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