New York Natural Heritage Program
White-m Hairstreak
Parrhasius m-album (Boisduval and Le Conte, [1833]) (1793)

Habitat [-]
Breeding habitats are forests, woodlands, or occasionally scrub with a substantial oak component including swamps and ridgetops if there are oaks. Adults can sometimes be observed in the oak canopy in spring before leaves open and spend much time there in summer as well. Adults wander widely and can be found on flowers almost anywhere (NatureServe 2009).

Associated Ecological Communities [-]
  • Appalachian oak-hickory forest
    A hardwood forest that occurs on well-drained sites, usually on ridgetops, upper slopes, or south- and west-facing slopes. The soils are usually loams or sandy loams. This is a broadly defined forest community with several regional and edaphic variants. The dominant trees include red oak, white oak, and/or black oak. Mixed with the oaks, usually at lower densities, are pignut, shagbark, and/or sweet pignut hickory.
  • Coastal oak-hickory forest
    A hardwood forest with oaks and hickories codominant that occurs in dry, well-drained, loamy sand of knolls, upper slopes, or south-facing slopes of glacial moraines of the Atlantic Coastal Plain.
  • Mowed lawn with trees
    Residential, recreational, or commercial land in which the groundcover is dominated by clipped grasses and forbs, and it is shaded by at least 30% cover of trees. Ornamental and/or native shrubs may be present, usually with less than 50% cover. The groundcover is maintained by mowing and broadleaf herbicide application.

Associated Species [-]
  • Oak Hairstreak (Fixsenia favonius)
  • Gray Hairstreak (Strymon melinus)