New York Natural Heritage Program
Northern Metalmark
Calephelis borealis (Grote and Robinson, 1866)
Insects

Habitat [-]
The habitat in New York appears to be openings in wooded limestone ridges, but the details are limited. The adults are said to also occur in nearby wetlands as they do in New Jersey. The typical habitats in states adjacent to New York include both natural openings on cliffs, ledges, or very rocky soil and also powerlines. The presence of nectar flowers in July is likely to be crucial and adults that are seen in wetlands may be there in search of nectar.

Associated Ecological Communities [-]
  • Limestone woodland*
    A woodland that occurs on shallow soils over limestone bedrock in non-alvar settings, and usually includes numerous rock outcrops. There are usually several codominant trees, although one species may become dominant in any one stand.

    * probable association but not confirmed
  • Rich sloping fen
    A small, gently sloping wetland that occurs in a shallow depression on a slope composed of calcareous glacial deposits. Sloping fens are fed by small springs or groundwater seepage. Like other rich fens, their water sources have high concentrations of minerals and high pH values, generally from 6.0 to 7.8. They often have water flowing at the surface in small channels or rivulets.