Lesser Sac-winged Bat (Saccopteryx leptura) lives in tropical rainforest across Central and South America. Its conservation status is Least Concern.
Fascinating facts about the Lesser Sac-winged Bat
- At just 45 mm long, the lesser white-lined bat is a pocket-sized flyer that wears a bold white stripe down its back, starting at the shoulders. Its brown fur and tiny frame make it look like a miniature version of the similar Rhynchonycteris naso, but it is slightly smaller and has paler fur.
- Male lesser white-lined bats sport a larger opening of an odiferous gland on the distal part of their arm, which opens onto the dorsal wing surface. This gland is sexual dimorphism where the female is actually larger overall, yet the male's scent-producing structure is more pronounced.
- Although it prefers heavily forested, high-canopy areas, the lesser white-lined bat will roost in open spots, trees, or even inside buildings, showing flexibility in shelter choice. It is found from low-elevation sites up to 900 m above sea level across northern South America and parts of Central America.
- When hunting, the lesser white-lined bat zeroes in on flying ants and other Hymenoptera beneath the canopy, using echolocation that never changes its call frequency or mouth size. This steady acoustic strategy illustrates a specialized hunting technique that relies on consistent sonar rather than flexible call adjustments.
- Lesser white-lined bats form tight roosting groups of 2 to 9 individuals and are thought to be monogamous, with females giving birth to only one or two pups each year. Newborns stay flightless for about twelve days and remain under maternal care for up to 18 months, while females defend their foraging zones, a behavior not seen in males.
Sources
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At a glance
RangeCentral and South America
HabitatTropical rainforest
DietInsects and fruit
About the Lesser Sac-winged Bat
In the twilight skies of the Neotropics, the Lesser Sac-winged Bat dances on whispers of wind, its delicate wings beating with a hypnotic rhythm as it pursues the faint scent of fruit and insects. With each gentle flutter, the bat's sac-like pouches on its wings pulse with a soft, leathery rustle, a unique feature that sets it apart from its nocturnal brethren. As it flits through the forest canopy, its large, round eyes shining like dark jewels, the Lesser Sac-winged Bat embodies the very essence of nocturnal elegance, a master of the shadowy realm where darkness reigns.
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