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在文学作品中,人们常以蜉蝣这种小昆虫来比喻生命的短暂,而希腊文“蜉蝣”一词就是仅一日生命的意思。其实蜉蝣的种类很多,在全世界约有2000种。热带、亚热带的湖泊沼泽附近,在日落时经常能见到有大群蜉蝣成虫在空中飞舞,不断坠地死亡的蜉蝣积尸常达数厘米厚,可以用作肥料或养鱼的饵料。蜉蝣的寿命因种类不同而有长有短,有的仅活几个小时,有的是一二日,最长的可达一周。所以,人们常言蜉蝣朝生暮死,这是不太确切的。
In literary works, people often use the small insects as a metaphor for the short life, while the Greek word “蜉 蝣” is the meaning of only one day of life. In fact, many types of grubs, about 2,000 species in the world. Tropical, subtropical lakes and swamps near the sunset can often see a large group of 蜉 蝣 adult flying in the air, falling cadaver often died a few centimeters thick, can be used as a fertilizer or fish feed. The life expectancy varies depending on the type of long and short, some live only a few hours, some one or two days, the longest up to a week. Therefore, it is not always certain that people often say they are dying for life.