Why is the butterfly called October?

According to people's livelihood "October Butterfly" is a traditional solar term in China. Refers to the "cold dew" solar term among the 24 solar terms (annual Gregorian calendar1October 8 or 9, 10), where butterflies fly, so they are called "October butterflies". Traditional farmers in China observed natural phenomena and found that butterflies were particularly active in autumn, mainly because the temperature gradually dropped after the cold dew, plants began to fall leaves and wither, and many butterflies began to migrate or build nests for the winter. The cold dew season is also an important period for butterflies to mate, so butterflies frequently move and fly in the air in droves, forming a beautiful scenery and bringing people a lot of joy and fun.