Barbastella beijingensis
Habitat
Caves and an abandoned tunnel in mountainous riparian woodland
Range
Fangshan District, Beijing, China
Size
Forearm length 41.1–46.4mm
Weight
10.5–13.9g
The Beijing barbastelle, also called the Beijing wide-eared bat, is a relatively large member of Barbastella. It weighs 10.5–13.9g and has a forearm length of 41.1–46.4mm. Its dorsal fur is dark black with brown-grey tips, while the underside is paler. Its ear shape and echolocation-call frequency help distinguish it from related barbastelles. (Wikipedia, general species account)
This bat is endemic to Beijing Municipality and was discovered in Fangshan District caves in 2001, before being formally recognized as a distinct species in 2007. Records cited in the account come from caves and one abandoned tunnel near Yunxiaoling, in mountainous country with riparian woodland. Its highly localized known distribution makes encounters dependent on access to those particular roosting sites. (Wikipedia, general species account)