== Echolocation ==The frequencies used by this bat species for echolocation lie between 25–54 kHz, have most energy at 29 kHz and have an average duration of 8.5 ms.== Other ==The species was named to honour the naturalist Johann Philipp Achilles Leisler== References ==*Frank Greenaway & A. M. Hudson (1990) "A Field Guide to British Bats", Bruce Coleman Books, Uxbridge*Wilfried Schober & Eckard Grimmberger (1993) "Hamlyn Guide: Bats of Britain and Europe", Hamlyn, London.
Podlaht meri med 38 in 47 mm, tehta pa med 11 in 20 grami.