Balantiopteryx plicata Peters, 1867, Puntarenas, Costa Rica.
OTHER COMMON NAMES German: Graue SackflUgelfledermaus.
Head and body 1.8-2.0 in (47-53 mm); forearm 1.5-1.7 in (40-45 mm); weight 0.17-0.21 oz (5-6 g). Dorsal fur pale or smoky gray, ventral fur slightly lighter gray.
Northwest Mexico to northwest Costa Rica along the Pacific slope. Additionally in some areas in east Mexico and northern Colombia.
Commonly found in deciduous forests and in areas with dry thorn scrubs.
Daytime roosts are found in caves, rock crevices, or tree hollows. Colony members perform a swarming flight around the
roost during which low frequency sounds are noticeable. These sounds are probably not produced through vocalization.
FEEDING ECOLOGY AND DIET
Feed on insects that they hunt usually above the canopy. REPRODUCTIVE BIOLOGY
A single pup is born at the beginning of the rainy season. Believed to be polygynous.
CONSERVATION STATUS Not threatened.
SIGNIFICANCE TO HUMANS None known. ♦
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