Critically Imperiled globally (most likely) - Conservation status is uncertain, but most likely at very high risk of extinction due to extreme rarity or other factors; typically 5 or fewer populations or locations in the world, very few individuals, very restricted range, very few remaining acres (or miles of stream), and/or very steep declines. More information is needed to assign a firm conservation status.
State conservation status rank:
SH
Historical (Possibly extirpated) in New York - Missing from New York; known only from historical records (more than 30 years ago), but still some possibility of rediscovery upon further searching.