Fireflies back: fly out of the beautiful in Shanghai botanical garden path (figure)

July night, fireflies fly out of the beautiful in Shanghai botanical garden path (long exposure time shooting). Once the firefly in the alley with hand can grasp, but in recent years has been hard to find. With Shanghai ecological environment improvement, coupled with much good rain this summer, recently, swarms of fireflies recur Shanghai botanical garden, etc. Fireflies are very sensitive to ecological change, want to long-term real retain they must also provide a suitable environment.