Introduction to Tiantai Mountain fireflies:Fireflies are insects of the order Coleoptera and the family Lucidae. There are more than 2,000 species in the world, and there are about 144 species in my country. There are more than 10 species in the beautiful Tiantai Mountain Scenic Area. Tiantai Mountain Scenic Area is the first firefly eco-tourism area in mainland China. Fireflies can be seen in Tiantai Mountain Scenic Area from April to October every year. It is the best place to study and watch fireflies. The best places to watch fireflies are Xiaojiawan, Dingle'an, Jinglunyuan, Zhengtiantai and Monk Street.