In deciduous to tropical-deciduous forests and residential places with such vegetation I have found this insect to make continuous sounds all through the day (even in nights sometimes) during the summers. Average summer temperature > 30 C around noon and ~ 28-29 around nights with high humidity.
I want to know what is the reason they make this sound ?
Recently, I found several of them dead near light poles etc..., and some sit very close to windows of air-conditioned rooms. I think they want some cool environment.