Long-toed water beetle

…Their legs are long compared to their body length, and their claws are large. For this reason, they are called long-toed water beetles. Adults live in water or on land, and in water they move slowly by attaching themselves to submerged objects; they cannot swim.

*Some of the terminology that mentions "long-toed water beetle" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…脚は体に比して長く，つめは大きい。このため英名はlong‐toed water beetleという。成虫は水中，または陸上にすみ，水中では沈んでいる物体に付着してゆっくり移動し，泳ぐことはできない。…

※「long-toed water beetle」について言及している用語解説の一部を掲載しています。

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