There is an insect. I'm from Nantong, Jiangsu. This kind of insect is very common. We call it a bride here, and we call it a student.
The jellyfish or birmanensis is a pest belonging to Tenebrio molitorinae of Coleoptera.
This beetle has Kong Quelan, blue-black and other varieties, all of which have very bright metallic luster. Widely distributed in China's low-altitude areas, especially in the Yangtze River basin.