It takes 50 days to become a pupa adult. The average life span of adults is only 5 days, and fireflies are only about 3-7 days. There are more than 2,000 species of fireflies in the world, which appear in rivers, ponds and farmland in summer and generally do not leave their range? 8? 4 clean water source. Officially, fireflies refer to their larvae, while fireflies refer to luminous adults. Male fireflies are more active and fly around to attract the opposite sex. The female stopped on the leaves and waited for the signal. There is an apatite-luminescent substance in fireflies, which will cause a series of chemical reactions under the action of luminescent enzymes. Only about 65,438+0% of the energy it emits is converted into heat energy, and the rest is converted into light energy. The light it emits is called cold light. The common light colors of fireflies are yellow, red and green. The male firefly has two segments of light in its abdomen, while the female only has 1. Lighting consumes a lot of energy.