New York Natural Heritage Program
Blackwater Bluet
Enallagma weewa Byers, 1927
Insects
Steve Walter
Family: Pond Damsels (Coenagrionidae)

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: G5
A Global Rarity Rank of G5 means: Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.


Did you know?
The immature male Blackwater Bluet is similar in appearance to the adult female until it matures later in the flight season (Lam 2004). This is true for many odonate species, but male and female reproductive structures remain distinctive throughout their lives.

State Ranking Justification [-]
In New York, Blackwater Bluets have only been confirmed at two locations in Suffolk County within one kilometer of each other, likely representing a single metapopulation (New York Natural Heritage Program 2011a). In addition to a highly restricted range in New York, there are a number of threats at the locations where it is known to occur (see Conservation and Management section).

Short-term Trends [-]

Long-term Trends [-]