《庄子·外篇·至乐》
蝴蝶很快又变化成为虫，生活在灶下，那样子就像是蜕皮，它的名字叫做灶马。
胡蝶胥也化而为虫，生于灶下，其状若脱，其名为鸲掇。
The butterfly will soon become a worm again, living under the stove, which looks like peeling off the skin, which is called Stove Horse.