also: えんまこおろぎ
noun
Emma field cricket; oriental garden cricket
Refers specifically to the species Teleogryllus emma, a common cricket in East Asia. The name is often written in katakana.
秋の夜、庭でエンマコオロギが鳴いている。
On an autumn night, Emma field crickets are chirping in the garden.
Hiragana spelling, also common.
Kanji spelling is rare and mainly found in specialized contexts; the katakana form is strongly preferred.
The name likely derives from 閻魔 (Enma, the Buddhist judge of the dead) and 蟋蟀 (koorogi, cricket), but the exact origin is uncertain.