Are there rattlesnakes in Hunan?

Hello, Hunan has never heard of rattlesnakes. Mangshan welding head belongs to Agkistrodon halys, formerly known as Agkistrodon halys, and mainly lives in Mangshan, Chenzhou, Hunan. It can be said that it is a representative species in Hunan. Its head is triangular and shaped like a soldering iron. The tail is white, so it is also called Mangshan White-tailed Snake. The whole body is dark brown, with tiny yellow-green or rusty spots, forming a fine network impression; The dorsal scales are yellowish green, clustered together to form lichen-like spots, which are equidistant from dark brown and run through the tail; The left and right lichen spots meet at the dorsal midline, forming complete horizontal stripes or slightly staggered back and forth. There is no doubt that this is a highly recognizable snake. Mangshan welding head, known as the "giant panda in the snake", is a national first-class protected species. This identity, I believe, must have aroused the curiosity of many people. But this thing is rare and beautiful. I advise you not to play. Mangshan welding head is not only famous for its treasure in the world, but also as a member of the original genus of Agkistrodon halys, its blood toxicity is daunting, and it is the largest snake among the known poisonous snakes.