New York Natural Heritage Program
An Ear Moth
Amphipoea erepta ryensis

Threats [-]
Accidental fire and the spread of the invasive plant Phragmites australis are potent threats. Fire can eradicate a population, and Phragmites outcompetes and replaces northern gama grass (Tripsacum dactyloides), the sole food source for the larvae. Mosquito spraying is also a threat.

Conservation Strategies and Management Practices [-]
Since this moth is sensitive to fire, if an area occupied by the moth must be burned, some areas should be left unburned as refugia for the moth. After the area occupied by the one known population was burned in 1987, the moth was only found in patches of grass that escaped the burn (City of New York 1987). In addition, it would be beneficial to control the spread of Phragmites, and restrict or minimize mosquito spraying, in occupied areas.