New York Natural Heritage Program
Edwards' Hairstreak
Satyrium edwardsii (Grote and Robinson, 1867)
Insects
Edwards' Hairstreak Steve Walter
Family: Blues, Coppers, Hairstreaks, Elfins (Lycaenidae)

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

Federal Protection: Not Listed

State Rarity Rank: S3S4
A State Rarity Rank of S3S4 means: Vulnerable in New York, or Apparently Secure - Vulnerable to becoming imperiled in New York, with relatively few populations or locations, few individuals, and/or restricted range; or uncommon but not rare in New York; may be rare in some parts of the state; possibly some cause for long-term concern due to declines or other factors. More information is needed to assign a single conservation status.

Global Rarity Rank: G4
A Global Rarity Rank of G4 means: Apparently secure globally, though it may be quite rare in parts of its range, especially at the periphery.


Did you know?
The larvae of Edwards' Haristreak and some related butterflies are defended by ants who eat sweet secretions from them. The ants that tend Edwards' Haristreak caterpillars make special shelters for them at the bases of the small oaks they ascend to feed on at night.

State Ranking Justification [-]
This is a very localized species, but apparently there are dozens of occurrences in southeastern New York. The species still occurs in the Albany Pine Bush and there have been isolated occurrences in Oneida, Steuben, and Delaware Counties. Some habitats are management dependent. The species at present is not imperiled, but does occur within a limited range and specialized habitat.

Short-term Trends [-]

Long-term Trends [-]