noun
green tree cricket
A species of tree cricket (Truljalia hibinonis) known for its loud, clear call in late summer and autumn.
秋の夜、アオマツムシの鳴き声が聞こえる。
On autumn nights, you can hear the chirping of green tree crickets.
The name literally means 'green pine cricket', from 青 (ao, 'green') + 松虫 (matsumushi, 'pine cricket'), referring to its color and habitat.