New York Natural Heritage Program
Tri-colored Bat
Perimyotis subflavus (Menu, 1984)
Family: Evening Bats and Vesper Bats (Vespertilionidae)

State Protection: Not Listed
The species is not listed or protected by New York State.

Federal Protection: Not Listed

State Rarity Rank: S1
A State Rarity Rank of S1 means: Typically 5 or fewer occurrences, very few remaining individuals, acres, or miles of stream, or some factor of its biology makes it especially vulnerable in New York State.

Global Rarity Rank: G2G3
A Global Rarity Rank of G2G3 means: Imperiled or Vulnerable globally - At high or moderate risk of extinction due to rarity or other factors; typically 80 or fewer populations or locations in the world, few individuals, restricted range, few remaining acres (or miles of stream), and/or recent and widespread declines. More information is needed to assign a single conservation status.

Did you know?
The tri-colored bat (Perimyotis subflavus) was formerly known as the eastern pipistrelle (Pipistrellus subflavus). It was first recommended for placement in a separate genus in 2003 (Hoofer and Van Den Bussche 2003).

State Ranking Justification [-]
Tri-colored bats were likely never common in New York. Although their northern range extends into Canada, New York is peripheral to the core of their range. The statewide population numbers have declined dramatically since the effects of WNS were first observed in 2006.

Short-term Trends [-]

Long-term Trends [-]