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Bulletin American Museum of Natural History. [Vol. XXXVII, 



different from that of other bats, which feed with such ease on the wing 

 that one can seldom ascertain whether or not they have been successful in 

 their pursuit. These long-eared bats after seizing an insect return at once 

 to their perch. Here they move about nervously, busy with either foot or 

 wing until the tiny jaws have disposed of their prey. They feed on rela- 

 tively large insects with rather hard integuments, as shown by the contents 

 of their stomachs. 



Colonel Roosevelt gives a most interesting and vivid account of their 

 feeding habits in his ' African Game Trails,' page 399: 



" In catching insects they behaved not like swallows but like flycatchers. 

 Except that they perched upside down so to speak, that is, that they hung 

 from the twigs instead of sitting on them, their conduct was precisely that of 

 a phcebe bird or a wood pewee. Each bat hung from its twig until it espied 

 a passing insect, when it swooped down upon it, and after a short flight 

 returned with its booty to the same perch or went on to a new one close by; 

 and it kept twitching its long ears as it hung head downward devouring its 

 prey." 



The wide range of the genus Lama across Tropical Africa outside of the 

 equatorial forests seems to be dependent on the neighborhood of water 

 which, of course, only indirectly influences its distribution. Many of the 

 rivers, swamps and lakes, even in the more arid regions, are fringed with 

 trees and bushes that offer very convenient roosts. These bats are usually 

 found in just such sites, but they avoid houses and cliffs. Another reason 

 may be that in the neighborhood of water and, particularly about swamps, 

 certain insects upon which they like to feed are especially common. 



Rhinolophid^e. 

 19. Rhinolophus hildebrandti eloquens Andersen. 



A rather light brownish-gray horseshoe-bat, with very dark-brown wings. 

 Compared with R. aba", from the same region, it is seen to be slightly lighter 

 in color, with larger ears. Its measurements are greater throughout; total 

 length approximately 3.75 inches (95 mm.); tail about 1.1 inches (28 mm.); 

 expanse of wings 14 inches (355 mm.). 



Our three specimens from Aba were captured in caves, where they 

 mingled with Rhinolophus abo? and other bats. They extend the range 

 some distance to the northwest, as this small race of the East African R. 

 Jiildebrandii was first found in Uganda. 



