New York Natural Heritage Program
Mottled Darner
Aeshna clepsydra Say, 1839
Insects
Mottled Darner Blair Nikula
Family: Darners (Aeshnidae)

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

Federal Protection: Not Listed

State Rarity Rank: S4
A State Rarity Rank of S4 means: Apparently secure in New York State.

Global Rarity Rank: G4G5
A Global Rarity Rank of G4G5 means: Apparently or Demonstrably Secure globally - Uncommon to common in the world, but not rare; usually widespread, but may be rare in some parts of its range; possibly some cause for long-term concern due to declines or other factors. More information is needed to assign a single conservation status.


Did you know?
The very constricted abdomen is due to the hourglass shape of the third abdominal segment that gives this species its name. The specific name, clepsydra, comes from the Greek word klepsydra meaning water clock or hourglass.

State Ranking Justification [-]
To date, this species has been recorded from just ten localities in the state. The distribution of these records is widespread and the species principal habitat, small lakes and embayments on larger lakes with marshy or boggy edges (Dunkle 2000), is also widespread, but localized. These considerations suggest that existing collection locations are not an accurate representation of the actual number of populations. However, the species is thought to be fairly local in New York and other states so the number of undiscovered populations may not be large. It is likely that there are particular qualities, such as water depth, bottom substrate type, amount and type of aquatic vegetation, and pH, that make some lakes and ponds suitable while others are not.

Short-term Trends [-]

Long-term Trends [-]