About Miniopterus fuliginosus (Hodgson, 1835)
Wing Morphology
This species, Miniopterus fuliginosus, has long, narrow wings, large wingspans, and low wing loadings that allow it to make quick, long-distance flights.
Body Size Measurements
Head and body length ranges from 10 to 11 centimetres (3.9 to 4.3 inches), forearm length ranges from 4 to 5 centimetres (1.6 to 2.0 inches), and wingspan measures 30 to 31 centimetres (12 to 12 inches).
Fur Coloration
Dorsal (upper-body) color ranges from reddish brown to dark blackish brown, while the ventral (underpart) fur is lighter in color.
Wing Membrane Color
The wing membrane is blackish brown.
Fur Texture and Length
The fur is dense and soft; it is long on the upper body and short on the underparts.
Head and Ear Features
The ears are small, and the cheeks below the eyes lack hair.
Echolocation Frequency Consistency
A 2018 study by Zhang Jiang Lu and colleagues found that echolocation frequencies are very similar across different Eastern bent-wing bat colonies.
Echolocation Variation Cause
Variation in the species' echolocation calls is likely caused by differences in background noise, rather than genetic drift.