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: 跳虫
図鑑で「蚤虫」という表記を見かけたが、普通は跳虫と呼ばれる。
I saw the notation '蚤虫' in an illustrated reference book, but it is usually called 跳虫.