Fes., 1912. Mammats oF ILLINOIS AND WISCONSIN — Cory. 473 
Atalapha cinerea H. ALLEN, Bull. U.S. Nat. Mus., No. 43, 1893, p. 162 (St. Louis, 
Missouri). EveRMANN & Butter, Proc. Ind. Acad. Sci., 1893 (1894), p. 135 
(Indiana). 
Lasiurus cinerea SNYDER, Bull. Wis. Nat. Hist. Soc., II, 1902, p. 125 (Wisconsin). 
Lasiurus cinereus ALLEN, Proc. Bost. Soc. Nat. Hist., XIII, 1869 (1871), p. 187 
(Iowa). Mitter, N. Amer. Fauna, No. 13, 1897, p. 114 (Illinois, Minnesota, 
etc.). ApAms, Rept. State Board Geol. Surv. Mich., 1905 (1906), p. 31 (Michi- 
gan). Jackson, Bull. Wis. Nat. Hist. Soc., VI, 1908, p. 33 (Wisconsin). Hot- 
LISTER, Bull. Wis. Nat. Hist. Soc., VI, 1908, p. 142 (Wisconsin). Haun, Ann. 
Rept. Dept. Geol. & Nat. Resources Ind., 1908 (1909), p. 637 (Indiana). Woop 
Bull. Ill, State Lab. Nat. Hist., VITI, 1910, p. 599 (Illinois). 
Type locality — Philadelphia, Pennsylvania. 
Distribution — Practically the whole of North America south of Hudson 
Bay and the Great Slave Lake region. 
Description — Color of body hoary (brown mixed with whitish); upper 
surface of interfemoral membrane covered with fur except on the 
extreme edge; forehead and band across the throat buff color, 
bordered below by blackish; edge of ears black; muzzle blackish, 
a narrow black stripe extending above the eyes. 
Measurements — Total length, about 5.30 in. (130 to 140 mm.); tail, 
2.12 in. (54 mm.); foot, .4o in. (10 mm.); extent (spread of wing 
in fresh specimens) 15.75 in. (400 mm.); forearm, about 2 in. 
(50 mm. or more). 
The color is somewhat variable, but its brown color frosted with 
white (not reddish or yellowish red as in N. borealis) and larger size 
will distinguish it from that species, and the completely furred inter- 
femoral membrane from other species which occur within our limits. 
The Hoary Bat, while apparently by no means common, occurs 
throughout Illinois and Wisconsin. There are specimens in the Field 
Museum collection taken in Chicago and I have examined a specimen 
taken by Mr. T. L. Atkinson at Charleston, Coles Co. Miller records 
it from Warsaw, Hancock Co.; and Wood includes it in his Mammals 
of Champaign Co., Illinois. I have secured a specimen September 5, 
1g1o, at Lake Geneva, Walworth Co., Wisconsin, and have examined 
specimens from Rock and Milwaukee counties of that state. Hollister 
records one from Delavan, Walworth Co.; Snyder, one from Dodge 
County; and Jackson, from Janesville and Milton, Rock Co. 
Although not as yet recorded from northern Wisconsin or southern 
Illinois, specimens have been taken in Minnesota (Miller), Michigan 
(Adams), Iowa (Allen), Indiana (Hahn), and Missouri (H. Allen). 
This large Bat probably occurs most commonly in Hlinois in spring 
and fall during the migrations, as most of them are supposed to breed 
from southern Wisconsin northward. That at least a few individuals 
