White Admiral (Limenitis arthemis arthemis), including white-banded hybrids
The typical subspecies of Limentis arthemis and some "hybrids" with subspecies astyanax have prominent white bands on both wings. The range of this subspecies is shown because it looks so different from the red-spotted purple form. The fact that both forms interbreed over a broad zone and produce fertile offspring is why they are treated under the single species (see page for Limentis arthemis).
State and Regional References:
Glassberg, J. 1993. Butterflies Through Binoculars: A Field Guide to Butterflies in the Boston-New York-Washington Region. Oxford Univ. Press, New York, N.Y. 160 pp. Clark, A.H. and Clark, L.F. 1951. The Butterflies of Virginia. Smithsonian Miscellaneous collection No. 116:1-239. 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. Woodbury, E.N. 1994. Butterflies of Delmarva. Delaware Nature Society, Inc., Tidewater Publishers, Centreville, MD. 138 pp. [NOTE: this book only treats True Butterflies (Papilionoidea). It does not treat Skippers (Hesperioidea).]