Gray sacwinged bat

Balantiopteryx plicata

SUBFAMILY

Emballonurinae

TAXONOMY

Balantiopteryx plicata Peters, 1867, Puntarenas, Costa Rica.

OTHER COMMON NAMES German: Graue SackflUgelfledermaus.

PHYSICAL CHARACTERISTICS

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.

DISTRIBUTION

Northwest Mexico to northwest Costa Rica along the Pacific slope. Additionally in some areas in east Mexico and northern Colombia.

HABITAT

Commonly found in deciduous forests and in areas with dry thorn scrubs.

BEHAVIOR

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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