The availability of the eponym timoriensis continued to be examined, at one point designated "nomen dubium" (Parnaby, 2009), as did determination of source of the type specimen.

The entry in Gould's Mammals of Australia (1863) quotes the determination of Robert Fisher Tomes, that first doubts the origin of the specimen as Timor.

[12] It is noted that the south-eastern long-eared bat is ten times more likely to be found where there is vast strands of vegetation, compared to small areas of forest remnants.

[12] Female south-eastern long-eared bats form small maternity colonies in tree hollows, whereas the males are typically under exfoliating bark in the summer.

[6] This bat species concentrates on aerial foraging, consuming its prey in flight, permitting it to continue to be airborne for hours at a time.

[11] These high frequency sound waves (echolocation calls) are created by the bats pushing air through its vocal cords in the same way as people speak.

[11] It is noted that the number of vibrations of a normal bat call is 50000 Hz or 50 kilohertz (kHz) which matches to a wavelength of 6.5mm, which is a perfect scale for gauging the size of small insects.

[11] This is where a complex texturalised picture is created by the echolocation calls which allows the bats to detect the presence of an insect camouflaged against a tree trunk.

[6][12] There are current and potential threats that have been acknowledged and they include the following: habitat loss and fragmentation; forestry activities; tree hollow competition; inappropriate fire regimes; predation by feral species, exposure to agrichemical and climate change.