World's largest aquatic insect found in Sichuan (4/5)

Photo taken on July 17, 2014 shows a specimen of an insect in the order Megaloptera which is discovered in a mountain of Chengdu, Sichuan province. With its wingspan measured as 21 centimeters, the insect won the title of the largest aquatic insect in the world. [Photo: China News Service/ Zhong Xin]