Vespertilioninae, Gray, 1821

Huang, Joe Chun-Chia, Jazdzyk, Elly Lestari, Nusalawo, Meyner, Maryanto, Ibnu, Maharadatunkamsi, Wiantoro, Sigit & Kingston, Tigga, 2014, A recent bat survey reveals Bukit Barisan Selatan Landscape as a chiropteran diversity hotspot in Sumatra, Acta Chiropterologica 16 (2), pp. 413-449 : 448

D. Keys to species of subfamily Vespertilioninae c, d

1.1. Thickened pads on wrist and foot....................................................................... 2

1.2. No thickened pads on wrist and foot (in some Pipistrellus spp., skin on wrist slightly thickened).................... 3

2.1. Pads on wrist and foot flesh-colored; head not flattened.................................... genus Glischropus (a)

2.2. Pads dark gray; head very flattened.................................................... genus Tylonycteris (b)

3.1. FA 47–54 mm; BM 17–26 g; one pair of upper incisors....................................... Scotophilus kuhlii *

3.2. FA ≤ 43 mm; BM ≤ 20 g; two pairs of upper incisors....................................................... 4

4.1. One pair of upper premolars; FA 30–36 mm; BM 8–13 g .................................... Philetor brachypterus

4.2. Two pairs of upper premolars.......................................................................... 5

5.1. Wing dark; tragus much longer than its width, bluntly pointed; calcar lobed..................... genus Pipistrellus (c)

5.2. Wing whitish, translucent; tragus rectangular, the length subequal to its width; calcar narrow and elongated................................................................................................ genus Hypsugo (d) *