A Chinese idiom
From Paul Frank’s Language Jottings:
Chán bù zhī xuě: The cicada knows nothing of snow. Said of someone who’s ignorant or inexperienced. There’s also the word huigu, platypleura kaempferi, a kind of bright-colored cicada, and the saying huigu bu zhi chun qiu, the cicada is ignorant of spring or autumn, i.e., limited in experience or vision.
