Refers to crickets of the family Gryllidae. In everyday Japanese, the katakana spelling コオロギ is most common.
On an autumn night, crickets are chirping in the garden.
クリケット is the British bat-and-ball sport, while コオロギ is the insect also called 'cricket' in English—unrelated in Japanese despite the shared English name.
Katakana spelling is standard for this animal name; usually written in kana.
Hiragana spelling is also common and matches the usual-kana preference.
Rare kanji spelling; mainly encountered in literary or scientific contexts.
Rarely used kanji form.
Rarely used kanji form.
The word is native Japanese. The exact derivation is uncertain, but it is likely mimetic or sound-symbolic in origin, imitating the insect's chirp.