New York Natural Heritage Program
Regal Moth
Citheronia regalis (Fabricius, 1793)
Citheronia regalis (regal moth) Stephen Cresswell
Family: Giant Silkworm and Royal Moths (Saturniidae)

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: 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?
Regal moth caterpillars are known as hickory horned devils due to their fierce appearance. Despite their name and imposing size and appearance, the caterpillars are harmless.

State Ranking Justification [-]
The regal moth's long-term decline, current rarity, and continuing threats justify a ranking of S1.

Short-term Trends [-]

Long-term Trends [-]