also: まつかれは
noun
pine moth; Dendrolimus spectabilis
A moth species whose larvae feed on pine needles; the name is typically written in katakana.
マツカレハの幼虫が松の葉を食べている。
The pine moth larvae are eating the pine needles.
The name マツカレハ literally means 'pine withered leaf', likely referring to the larva's appearance or its effect on pine foliage. The exact derivation is uncertain.