noun
geometer moth; geometrid moth
Refers to moths of the family Geometridae, especially the subfamily Ennominae. A technical term used in entomology.
枝尺は幼虫が尺取り虫と呼ばれる蛾の仲間だ。
The geometer moth is a type of moth whose larvae are called inchworms.
尺取り虫 refers specifically to the larva (inchworm), while 枝尺 refers to the adult moth.
The name 枝尺 (えだしゃく) likely derives from the larva's behavior of measuring (尺) as it moves along branches (枝). The exact historical origin is uncertain.