|Melsheimer's Sack Bearer
State Rarity Rank:
Global Rarity Rank:
Did you know?
Why are they called "sack bearers?" The larval or caterpillar stage of these moths "bear" cases or sacks in which they live. The sacks can be made out of pieces of leaves that are lined with silk. Later, they will undergo metamorphosis within these sacks.
|State Ranking Justification||
In New York State, this species is known only from the dwarf pine barrens of Long Island. It has been observed over multiple years at this site, which indicates that the population is viable and is reproducing. However, no other occurrences in New York State have been found.
This species appears to be stable on Long Island. Surveys since 1999 have indicated very little change in the dwarf pine barrens population. Forest fires in the dwarf pine plains, especially the very large fire in 1995, resulted in an increase in habitat for this species and a corresponding increase in the population, particularly in burned areas (McGuinness 2006).
The long-term trend for this species in New York is unknown. Long Island represents the northern part of its range, so this species has always been rare in New York State. The long-trend for this species is also tied to the long-term trend for the natural community it lives in. The acreage of dwarf pine plains in New York has declined from historical acreage due to settlement, development, and suppression of fires.