Surprisingly I have seen more Monarch butterflies this year than Viceroy Butterflies (Limenitis archippus), so I was delighted last week to spot this Viceroy last week at Occoquan Bay National Wildlife Refuge when it spread its wings. When an orange blur first moves across my sight line, I can’t tell the species apart. However, when the butterfly lands and I am able to look closely at the wing patterns, I can usually see the thin black stripe across the hindwings of Viceroys that is absent in Monarchs.
© Michael Q. Powell. All rights reserved.
Mike Powell 
This lovely photo perfectly displays the difference betwixt a Viceroy and a Monarch Butterfly. If memory serves me correctly (from years of education with Benjamin) Viceroy Butterflies do not migrate as do Monarchs. Best wishes for a splendid September and have a Happy Labor Day! “The supreme accomplishment is to blur the lines between work and play.” – Arnold J. Toynbee. Thank-You, Mr. Mike!!
Thanks, Ellen. Happy Labor Day to you as well. I believe that you care correct about Viceroys not migrating. I double-checked on line and confirmed that Viceroys overwinter in their local habitats as caterpillars.