Taxonomy
Rhinolophus stheno was first described by Knud Andersen in 1905, from a specimen collected by H. N. Ridley in Selangor, Malaysia. [4] [5] It was included in the megaphyllus group by Andersen, euryotis group of Rhinolophus by Bodgdanowicz in 1992, and then back in the megaphyllus group by Csorba et al in 2003. [6] [7]
A subspecies, Rhinolophus stheno microglobosus, was described in 1998 by Gábor Csorba and Paulina Jenkins, but a 2008 analysis by Soisook et al described it as a separate species. [8] [6]
Description
R. stheno is a medium-sized bat, with a forearm length of about 45 millimetres (1.8 in) and a short tail. The back is grey to reddish-brown in color, while the undersides are a similar color but lighter. [6] It is overall similar in appearance to R. malayanus . R. stheno can be distinguished by greater "inflation of the anterior median compartments of the rostrum", narrower post-orbital constriction, and proportions of the first and second finger bones on the third finger. [6]
R. stheno's habitat includes forests, rubber plantations, and other agricultural zones. It roosts in caves. It has be found at elevations up to 1,700 metres (5,600 ft) above sea level. [1] Pregnancies occur March to May, and lactation May to July. [6]
It is listed as a species of least concern by the IUCN due to its likely large population and wide distribution. [1] It is common in Thailand, and may be less common in other parts of its range. [1]
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