New York Natural Heritage Program
An Ear Moth
Amphipoea erepta ryensis

Habitat [-]
This moth is found in wetlands, which are usually or always tidal, that contain an abundance of the larval foodplant, northern gama grass (Tripsacum dactyloides). At the only population known to exist in New York State, the moth is found primarily in wetlands and wet meadows in a park. Northern gama grass is found at scattered wetland edges throughout the park and composes a 3-acre swath in one 25-acre wet meadow (Kunstler 1991).

Associated Ecological Communities [-]
  • Shallow emergent marsh*
    A marsh meadow community that occurs on soils that are permanently saturated and seasonally flooded. This marsh is better drained than a deep emergent marsh; water depths may range from 6 in to 3.3 ft (15 cm to 1 m) during flood stages, but the water level usually drops by mid to late summer and the soil is exposed during an average year.

    * probable association but not confirmed