face is marked with a scattered mass of whitish tipped 

 hairs which are more or less abundant in various indi- 

 viduals, and which gives a grayish or hoary tinge to the 

 upper surface of the body. 



The silver haired bat is frequently more abun- 

 dant in the swampy regions of the State where it flies 

 over the water in much the same manner as a swallow, 

 skimming the surface and picking up floating insects. 

 It is particularly abundant in the Pymatuning Swamp 

 in Mercer and Crawford counties. The total length of 

 the Silver Haired Bat is about four inches. 



Say's Little Brown Bat 



Myot'is subulatiis suhulatus 



This species proximates in size and is simailar in 

 coloration to the little brown bat (Myotis lucifugus 

 lucifugus) with which it is apt to be confused. Like 

 the little brown bat, Say's bat is a pastoral species, 

 preferring the rural sections in which to live and sel- 

 dom venturing into city districts where the big brown 

 bat (Eptesicus fsucus fsucus) holds sway. Say's bat 

 may be distinguished from the more common little 

 brown bat by the fact that the ears of the latter are 

 considerably shorter. Rhoads (1903) says that the ears 

 of Myotis lucifugus, when laid forward, barely reach 

 the tip of the nose, while in Myotis suhulatus, the ears 

 extend considerably beyond the nose when held in this 

 way. Say's bat seems to have a more limited distribu- 

 tion in Pennsylvania than Myotis lucifugus and seems 

 to be more abundant in Western Pennsylvania. Both 

 of the little brown bats are more likely to be found 

 in lowland sections of the State. 



-*>|; 82 ><:•'■■• 



