蚤のみ虫むし

noun

springtail

Rare term for a springtail (Collembola), a tiny soil-dwelling arthropod. The more common word is 跳虫 (とびむし).

See also: 跳び虫

• 図ず鑑かんで「蚤のみ虫むし」という表ひょう記きを見みかけたが、普ふ通つうは跳とび虫むしと呼よばれる。

  I saw the notation '蚤虫' in an illustrated reference book, but it is usually called 跳虫.