North American Butterflies and Moths List

The definitive website on wildbirds & nature




The Registry of Nature Habitats

U.S. Geological Survey


Butterflies of North America

Butterflies of Iowa

White M Hairstreak (Parrhasius m-album)
JPG -- species photo

White M Hairstreak (Parrhasius m-album [Boisduval & LeConte])

Wing span: 1 1/4 - 1 5/8 inches (3.2 -4.1 cm).

Identification: Tailed. Upperside iridescent blue with black borders. Underside grayish brown; white postmedian line edged with black and forming a white M (or W) near tail; white spot near base of costa.

Life history: Not reported.

Flight: Three broods in the north, four in Florida, from February-October.

Caterpillar hosts: Live oak (Quercus virginiana) and other oak species.

Adult food: Nectar from a variety of flowers including viburnum, sumac, sourwood, wild plum, poinsettia, sweet pepperbush, common milkweed, lantana, dogwood, and goldenrod.

Habitat: Woods with broadleaf trees.

Range: Connecticut west to southeast Iowa and Missouri, south to east Texas, the Gulf Coast, and peninsular Florida. Rare stray to Michigan and Wisconsin.

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.

Author: Jane M. Struttmann

State and Regional References:


Nekola, Jeffrey C. 1995.  County Distribution Maps of Iowa Butterflies and 

     Skippers.  Dept. of Natural and Applied Sciences, Univ. of Wisconsin,

     Green Bay, WI.  30 pp.

     

Opler, P.A. 1998. A field guide to eastern butterflies, revised format.

     Houghton Mifflin Co., Boston.     

White M Hairstreak (Parrhasius m-album)
distribution map
map legend

Disclaimer
Return to species list
Return to Butterflies of North America main page