It was described as a subspecies of the lesser brown horseshoe bat in 1998, with the trinomenRhinolophus stheno microglobosus. The holotype was collected in Na Hang Nature Reserve in Vietnam in 1996.[2]
In 2008, Soisook et al. published that R. s. microglobosus should be considered a full species based on distinct morphology and echolocation characteristics.[3]
The species name "microglobosus" "refers to the size and shape of the median anterior rostral swellings which are considerably smaller than those of R. stheno."[2]
Description
Relative to other horseshoe bats, it is medium-sized. Its forearm length is 43.8–47.2 mm (1.72–1.86 in). Individuals weigh 9–9.5 g (0.32–0.34 oz). Its dorsal fur is bicolored, with the basal portions of the hairs yellowish-brown and the distal portions cinnamon-brown. Its ventral fur is paler in color. Its flight membranes are all dark brown.[2]