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Butterflies of Ohio -- Limenitis arthemis

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Butterflies of North America

Butterflies of Ohio

Red-spotted Purple (Limenitis arthemis)
JPG -- species photo

Red-spotted Purple (Limenitis arthemis [Drury])

Wing span: 2 1/4 - 4 inches (5.7 - 10.1 cm).

Identification: These two very different forms had once been considered separate species. WHITE ADMIRAL: Upperside is black with broad white median bands on both wings; hindwing has a marginal row of blue dashes and a submarginal row of red dots. Underside is reddish-brown with white median bands as on the upperside. RED-SPOTTED PURPLE: Upperside is blue to blue-green with much iridescence on the outer part of the hindwing. Underside is dark brown. Forewing has 2 red-orange bars near the base of the leading edge; hindwing has 3 red-orange spots near the base and a submarginal row of red-orange spots. The two forms hybridize where their ranges overlap, creating various intermediate forms which may be found in or near the overlap zone.

Life history: Males perch 3 feet or more above the ground on trees and tall bushes and rarely patrol for females. Eggs are laid singly on tips of host plant leaves; caterpillars eat leaves. Third-stage caterpillars hibernate.

Flight: Two broods from April-October.

Caterpillar hosts: Leaves of many species of trees and shrubs including wild cherry (Prunus), aspen, poplar, cottonwood (Populus), oaks (Quercus), hawthorn (Crataegus), deerberry (Vaccinium stamineum), birch (Betula), willows (Salix), basswood (Tilia), and shadbush (Amelanchier).

Adult food: Sap flows, rotting fruit, carrion, dung, and occasionally nectar from small white flowers including spiraea, privet, and viburnum. White Admirals also sip aphid honeydew.

Habitat: The White Admiral form is usually found in the north in deciduous broad-leaf or mixed evergreen forests dominated by aspen or birch. The Red-Spotted Purple form is usually found further south than the White Admiral, in deciduous or mixed forests, moist uplands, valley bottoms, and coastal plains.

Range: Alaska and subarctic Canada southeast of the Rocky Mountains to central Texas; east to New England and central Florida. Isolated populations in Arizona, New Mexico, and west Texas south into Mexico. The White Admiral form usually occurs north of a line through north central New England, New York, Pennsylvania, Michigan, and Minnesota. The Red-spotted Purple form is usually found south of this line. Much hybridization occurs where these forms meet.

Comments: The Red-spotted Purple is a mimic of the poisonous Pipevine Swallowtail (Battus philenor).

Conservation: Not usually required.

The Nature Conservancy Global Rank: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.

Management needs: None reported.

References:

Opler, P. A. and G. O. Krizek. 1984. Butterflies east of the Great Plains. 
     Johns Hopkins University Press, Baltimore. 294 pages, 54 color plates.

Opler, P. A. and V. Malikul. 1992. A field guide to eastern butterflies. Peterson 
     field guide #4. Houghton-Mifflin Co., Boston. 396 pages, 48 color plates.

Scott, J. A. 1986. The butterflies of North America. Stanford University Press, 
     Stanford, Calif. 583 pages, 64 color plates.

Tilden, J. W. 1986. A field guide to western butterflies. Houghton-Mifflin Co., 
     Boston, Mass. 370 pages, 23 color 	plates.

Author: Jane M. Struttmann

State and Regional References:

Iftner, D.C., Shuey, J.A. and Calhoun, J.V.  1992.  Butterflies and Skippers 
     of Ohio.  Bulletin of the Ohio Biological Survey 9:1-212.  

Layberry, R.A., Hall, P.W. & Lafontaine, D.J., 1998.  The Butterflies of 
     Canada.  University of Toronto Press, Toronto, ON.  280 pp.  
     
Opler, P.A. 1998. A field guide to eastern butterflies, revised format.
     Houghton Mifflin Co., Boston.     
Red-spotted Purple (Limenitis arthemis)
distribution map
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