Fireflies illuminate summer night in Nanjing village

Photos taken on July 17, 2017 show fireflies gathering around a red paper umbrella, lighting up a beautiful summer night at a village in Nanjing, east China's Jiangsu Province. Thanks to recent improvements in the local ecology, fireflies, which hadn't been seen for years, have begun appearing again in the village. [Photo: IC]

Photos taken on July 17, 2017 show fireflies gathering around a red paper umbrella, lighting up a beautiful summer night at a village in Nanjing, east China's Jiangsu Province. Thanks to recent improvements in the local ecology, fireflies, which hadn't been seen for years, have begun appearing again in the village. [Photo: IC]

Photos taken on July 17, 2017 show fireflies gathering around a red paper umbrella, lighting up a beautiful summer night at a village in Nanjing, east China's Jiangsu Province. Thanks to recent improvements in the local ecology, fireflies, which hadn't been seen for years, have begun appearing again in the village. [Photo: IC]

Photos taken on July 17, 2017 show fireflies gathering around a red paper umbrella, lighting up a beautiful summer night at a village in Nanjing, east China's Jiangsu Province. Thanks to recent improvements in the local ecology, fireflies, which hadn't been seen for years, have begun appearing again in the village. [Photo: IC]

Photos taken on July 17, 2017 show fireflies gathering around a red paper umbrella, lighting up a beautiful summer night at a village in Nanjing, east China's Jiangsu Province. Thanks to recent improvements in the local ecology, fireflies, which hadn't been seen for years, have begun appearing again in the village. [Photo: IC]