Sinahahnia eyu is recorded from Chongqing and Hubei, China. The genus description notes a yellowish-brown carapace and five pale chevrons on the back of the abdomen.
In S. eyu, the male’s retrolateral tibial apophysis is twisted and has small thorns; the female’s spermathecae are kidney-shaped.
The paper records specimens collected at Duheyuan Nature Reserve in Shiyan, Hubei, at 1,678 m, and at Yintiaoling Nature Reserve in Wuxi, Chongqing, at Linkouzi/Fenshuihe, at 1,796 m.
An extinction-risk assessment has not been added yet.