noun
bloodworm (Halla okudai)
A marine polychaete worm used as fishing bait. The scientific name is Halla okudai.
See also: 揺蚊
釣り餌にアカムシを使う。
I use bloodworms for fishing bait.
noun
red mite; chigger mite; harvest mite (Trombicula akamushi)
A tiny red mite whose larvae bite humans and animals, causing itching. The scientific name is Trombicula akamushi.
See also: 恙虫
アカムシに刺されてかゆい。
I got bitten by a red mite and it itches.
Compound of 赤 (aka, 'red') and 虫 (mushi, 'bug, worm'), referring to the reddish color of these organisms.