Why does the hotter the weather, the merrier the cicada calls?

The hotter the weather is, the happier cicadas are:

Because cicadas are more active in hot weather. Just like people get restless when the temperature is high. The higher the temperature, the stronger their desire for courtship, so naturally they will bark more frequently.

In addition, the reason why cicadas call is also required by the external environment. Generally, they don't bark when the temperature is below 2 1℃.

These are the reasons why cicadas are happier when the weather is hotter. I hope it helps you.