Translation guide
A type of insect known for emitting a foul odor when threatened. In Japanese, the most common word is カメムシ, but there are also specific terms for different species.
The common insect that releases a bad smell when disturbed.
The most common and general term for stink bugs. Can be written as 椿象 or 亀虫 in kanji, but katakana is most typical.
A stink bug got into the house.
Stink bugs emit a bad smell.
A colloquial, somewhat childish term literally meaning 'fart bug'. Used in casual conversation.
A stink bug flew in!
Literally 'stink bug', but less common than カメムシ. May be used regionally or in children's language.
Don't touch the stink bug.
The brown marmorated stink bug, an invasive species common in homes.
Specifically the brown marmorated stink bug (Halyomorpha halys). Often found indoors in autumn.
In autumn, many brown marmorated stink bugs come into the house.
A common green species often found on plants.
The common green stink bug (Nezara viridula).
A green stink bug was on the vegetables.
カメムシ is the safest word for any stink bug. If you need to be specific, you can add color or description, e.g., 茶色いカメムシ (brown stink bug).