 The little forest bat is very similar in appearance and often confused with a number of other bats that it co-occurs with ( sympatric) including Vespadelus regulus, Vespadelus darlingtoni, Vespadelus baverstocki, Vespadelus troughtoni, Vespadelus pumilus and Scotorepens greyii.Live bats can be differentiated from these species using a combination of size, relative finger bone lengths and, in males, penis shape.Males have a distinctly shaped baculum.