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Text and photos by Nick Baker, unless otherwise stated

 EcologyAsia 2008
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Lesser Bamboo Bat
   

This specimen from Singapore was active in a sparsely wooded area adjacent to secondary forest.

Order : CHIROPTERA
Family : Vespertilionidae
Species :
Tylonycteris pachypus

Forearm Length : up to 2.8 cm
Weight : up to 5 grams

References : M1, M2, M3

 

Bamboo Bats are so called because they roost by day inside the stems of various bamboo species : the Lesser Bamboo Bat  is able to squeeze through a narrow slit of just 4 mm in width. (The slits in the bamboo stems are reported as being be created by beetles). All species of Bamboo Bat have a evolved a flattened skull as a result.

The species is smaller than the Greater Bamboo Bat, but has more fluffy, reddish-brown fur and an orange tinge to the belly. There are circular, fleshy pads on the thumbs and feet which allow a firm grip when roosting.

The Lesser Bamboo Bat inhabits forested areas, and will forage at night for flying insects, particularly termite swarms.

The species ranges from India through southern China and Burma to much of  Southeast Asia.