Zi Collection, Page Position: Upper, Radical: Power (lì), Page 15, Entry 01 To seek precise pronunciation, it is pronounced the same as "liú" (flowing). Fú yóu (蜉蝣), is a type of insect. Also recorded in the "Zihui Bu" (字汇补): Various venomous snakes spit their venom onto plants. If a person accidentally touches it, this venom is called yóu dú (䖻毒). Also, in the "Jiyun" (集韵), it is pronounced by the method of yí zhōu (夷周) cut. It is interchangeable with the character "yóu" (蝣). Fú yóu (蜉蝣), is written as fú yóu (蜉䖻) in the "Fangyan" (方言). For a detailed explanation, see the commentary for the character "fú" (蜉).