Long-tailed worm - Long-tailed worm

Japanese: ナガドロムシ(長泥虫) - ナガドロムシ

A general term for insects of the Heteroceridae family in the order Coleoptera. The adult body is slightly rectangular with a flattened back. The antennae are thick and short, and the mandibles of males are flat and large. The tibiae of the front and middle legs are flat with a comb-like arrangement of spines. The tarsus consists of four segments. Most species are small, with a body length of 3 to 4 mm. The English name is variegated mud-loving beetle. As the name suggests, adults and larvae are known to live in mud and sand near water. Heterocerus fenestratus is distributed throughout Japan, Siberia, and Europe, and adults can be found on the mud of rice field ridges from around May.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

甲虫目ナガドロムシ科Heteroceridaeの昆虫の総称。成虫の体はやや長方形で，背面が平たい。触角は太く短く，雄の大あごは扁平で大きい。前･中脚の脛節（けいせつ）は扁平でとげを櫛（くし）状に並べる。跗節（ふせつ）は4節からなる。体長3～4mmの小型種が多い。英名はvariegated mud‐loving beetle。その名のように成虫，幼虫は水辺の泥や砂にすむことで知られる。タテスジナガドロムシHeterocerus fenestratusは日本各地，シベリア，ヨーロッパにも分布し，成虫は5月ころから田のあぜの泥の上などに見いだされる。

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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