74 Order CHIROPTERA 



Distribution. — The Indiana bat is uncommon in Illinois, 

 although it is abundant in southern Indiana. It has been taken 

 in Hardin, La Salle, and Jo Daviess counties. No subspecies of 

 the Indiana bat has been named. The range of the species ex- 

 tends from New England to southwestern Wisconsin and south- 

 ward to central Arkansas, northern Alabama, and western 

 North Carolina, fig. 50. 



MYOTIS SUBULATUS (Say) 

 Small-Footed Brown Bat 



Although the small-footed brown bat has not been reported 

 in Illinois, there are many records of this bat in the northeast- 

 ern United States and isolated records for Missouri. Iowa, and 

 Kentucky. It is therefore possible that it may be discovered ill 

 Illinois when the caves and mines of this state are thoroughly 

 investigated. 



Among the distinguishing features of this species are the un- 

 usually small feet and the golden sheen of the fur. 



LASIONYCTERIS NOCTIVAGANS (LeConte) 

 Silver-Haired Bat 



Description. — The silver-haired bat, fig. 53, is black or 

 blackish brown, with white, appearing like silver, at the tips of 

 many of the hairs on its back. Fur continues from the back 

 onto the tail membrane and halfway to its tip. The ears are 

 short and rounded and each has a blunt tragus. 



Length- measurements: head and body 2} s-2 1 j inches (54—64 

 mm.) ; tail about li/>-2 inches (38-48 mm.) ; over-all 3?$-4-\^ 

 inches (92-112 mm.); hind foot Y%~Yl i ncn (9-12 mm.); ear 

 from notch % inch (14—16 mm.). 



The skull, slightly larger than in Myotis, has a length of 

 16-17 mm. (about % inch). Dental formula: I 2 3, C 1/1, 

 Pm 2/3, M 3/3. 



The silver-haired bat can be distinguished from the big brown 

 bat by the blackish fur with "silver-tipped" hairs on its back and 

 by its smaller size; from the red bat and the hoary bat by its 

 darker color and incompletely furred tail membrane. 



Life History. — The silver-haired bat is known in Illinois 

 mainly as a migrant. A few individuals winter in the southern 



