Overview
- Scientists from the Chengdu Institute of Biology and Giant Panda National Park described a new species named Trimeresurus lii after the philosopher Laozi, publishing the account in Zoosystematics and Evolution.
- Genetic testing with detailed morphology showed it is distinct from the bamboo pitviper Trimeresurus stejnegeri, with smooth head scales as a key marker.
- The sexes look different, with males showing a red and white side stripe and amber eyes, and females a yellow stripe with orange‑yellow eyes.
- As a venomous pitviper that overlaps with people in these mountains, it poses a local medical risk, illustrated by a reported researcher bite that responded to polyvalent antivenom.
- The snakes live in the humid forests of Mt. Emei and Xiling Snow Mountain in western Sichuan and grow to nearly 80 centimeters in length, highlighting the West China Rain Zone as a rich but understudied hotspot.