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For Insects, Spiders & Their Kin
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Species Polia purpurissata - Purple Arches - Hodges#10280

Purple Arches - Polia purpurissata Purple Arches - Polia purpurissata Unknown Moth - Polia purpurissata Unknown Moth-7 - Polia purpurissata Noctuidae: Polia purpurissata - Polia purpurissata Noctuidae: Polia purpurissata - Polia purpurissata Acronicta sp. - Polia purpurissata Polia purpurissata
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Noctuoidea (Owlet Moths and kin)
Family Noctuidae (Owlet Moths)
Subfamily Noctuinae (Cutworm or Dart Moths)
Tribe Hadenini
Genus Polia
Species purpurissata (Purple Arches - Hodges#10280)
Hodges Number
Explanation of Names
PURPURISSATA: from the Latin "purpura" (purple); probably a refrence to the light purplish-gray color on the forewing
common northward; uncommon or rare in some parts of range (e.g. ranked Special Concern in Ohio)
wingspan 40-55 mm
forewing purplish-gray with brown shading, especially around narrow, strongly-curved reniform spot; lines blackish, double, variably distinct; blackish shading on inside of ST line, heaviest toward anal angle
hindwing grayish-brown, darker at outer margin; fringe white
[description by Charles Covell]
Yukon (and Alaska?) and Northwest Territories to Nova Scotia, south in the east to Maryland and West Virginia, and south in the west to New Mexico, Arizona, California
acidic bogs where food plants grow, boreal forest, and Ponderosa Pine forests in the west; adults may be attracted to light.
City gardens, with birch, in at least southern New Brunswick
adults fly from July to September
larvae feed on leaves of alder, birch, Bitterbrush (Purshia tridentata), blueberry, Choke Cherry, deerberry, snowberry, sweetfern, willow
Internet References
pinned adult image [by Jeff Miller] plus description, habitat, food plants (Macromoths of Northwest Forests and Woodlands; USGS)
pinned adult image [by John Glaser, Maryland] plus food plants and habitat (Larry Line, Mostly Moths of Maryland)
pinned adult image of subspecies crydina and other info (California Dept. Food and Agriculture)
pinned adult image (Bruce Walsh, Moths of Southeastern Arizona)
US distribution map (Moths of North America; USGS)
North American distribution; PDF doc text description of range (J.D. Lafontaine and D.M. Wood, Butterflies and Moths of the Yukon)