noun
singing of insects; sound of insects
Especially refers to the chirping or singing of autumn insects like crickets and bell crickets. Often evokes a poetic or seasonal feeling.
See also: 虫の音
秋の夜、虫の声を聞きながら散歩するのが好きだ。
On autumn nights, I like to take a walk while listening to the singing of insects.
窓を開けると、涼しい風とともに虫の声が聞こえてきた。
When I opened the window, I heard the sound of insects along with the cool breeze.
Synonymous; 虫の音 is also common and carries the same poetic nuance.
Compound of 虫 (mushi, 'insect') + の (no, possessive particle) + 声 (koe, 'voice'). Literally 'voice of insects'.