noun
A species of cricket (Xenogryllus marmoratus) known for its chirping in late summer and autumn.
秋の夜、マツムシの鳴き声が聞こえる。
On autumn nights, you can hear the chirping of pine crickets.
noun
bell cricket (archaic)
Archaic name for the bell cricket (Meloimorpha japonica), now usually called スズムシ.
See also: スズムシ
昔はスズムシのことをマツムシと呼んだ。
In the past, bell crickets were called マツムシ.
Modern standard name for the bell cricket; マツムシ in its archaic sense refers to the same insect.
The name マツムシ (松虫) literally means 'pine insect', likely from its habitat or association with pine trees. The exact origin is uncertain.