ATALAPHA NOVEBORACENSIS. 
83 
duration of the twilight. Moreover, in the same locality, the 
several species do not commence to fly at the same hour, for each 
seems to await a particular and different degree of darkness. The 
Hoary Bat is one of the last to appear, and for this reason its 
capture is the most difficult. In Lewis County, during the latter 
part of June, it does not start out (excepting in deep forests and 
dark valleys) till about 8.45 p. m., or a full hour after sunset ; while 
in the early part of October I have killed it at 6 p. m., or just half 
an hour after sundown. The following table is calculated to illus- 
trate the above remarks : — 
Times of evening appearances of Atalapha cinerea at Locust Grove, 
Date. 
New York , at different dates in 1883. 
Sunset. First Bat Seen. 
Time after Sunset. 
June 30, 
7.42 o’clock. 
8.45 o’clock, 
63 minutes. 
July 9, 
7.38 
8.30 
52 
July 3 C 
7.2 1 “ 
8.10 “ 
49 
Aug. 3, 
7.17 
8.00 
43 
Aug. 21, 
6.52 
7.30 
38 “ 
Oct. 8, 
5-30 
6.00 
30 
ATALAPHA NOVEBORACENSIS (Erxleben) Peters. 
Red Bat ; New York Bat. 
This species ranks among the least common bats of the area 
under consideration. I have shot it here as late as October 12th 
(1883). 
Excepting the hoary bat it is the most beautiful of its tribe, 
being clad in a thick coat of soft, glossy fur of a bright golden-red 
color, varying somewhat in shade, and tipped to a greater or less 
extent with silvery white. This coloration serves, at a glance, to 
distinguish it from all its associates. 
The Red Bat generally makes its appearance earlier in the 
evening than the other species, evidently fancying the dusk of 
