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Brown Elfin Callophrys augustinus

 

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Brown Elfin
credit:  Walter Siegmund/CCSA

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Family: Lycaenidae, Gossamer-wing Butterflies view all from this family



Description The Brown Elfin (Callophrys augustinus) is butterfly of the Lycaenidae family. It is found in from Newfoundland north and west through the northern United States and the prairie provinces to Alaska. To the south it ranges in Appalachian Mountains to northern Georgia and northern Subspecies iroides is known as the Western Elfin.

The wingspan is 22–29 mm. Adults are on wing from early May to early June in one generation. They feed on flower nectar from various species, including Vaccinium, Sanicula arctopoides, Lindera, Salix, Barbarea and Prunus americana.

The larvae feed on Ericaceae species, including Vaccinium vacillans and Ledum groenlandicum in the east. They feed on a wide variety of plants in the west, including Arbutus and Cuscuta species. They feed on the flowers and fruits of their host plant. Pupation takes place in the litter at the base of the host plant. Hibernation takes place in the pupal stage.


Dimensions 3/4-1 1/8" (19-28 mm).


Habitat Freshwater swamps, marshes & bogs, Cities, suburbs & towns, Scrub, shrub & brushlands, Deserts, Grasslands & prairies, Forests & woodlands.


Range Mid-Atlantic, California, Rocky Mountains, Plains, Alaska, Northwest, Southwest, New England, Eastern Canada, Southeast, Western Canada, Great Lakes.


 

 

 

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