Viceroy (Limenitis archippus), caterpillar found at Fermilab, DuPage County, Illinois, photo 30 April 2004
Viceroy (Limenitis archippus), chrysalis formed from caterpillar (previous photo) found at Fermilab, DuPage County, Illinois, photo 8 May 2004
Viceroy (Limenitis archippus), emerged in captivity from caterpillar (previous photos) found at Fermilab, DuPage County, Illinois, 15 May 2004
Viceroy (Limenitis archippus), Fermilab, DuPage County, Illinois, 18 September 2004
Viceroy (Limenitis archippus), Nelson Lake Marsh, Kane County, Illinois, 20 July 2002
Viceroy (Limenitis archippus), Nelson Lake Marsh, Kane County, Illinois, 1 August 2003
Viceroy (Limenitis archippus), Fermilab, DuPage County, Illinois, 11 June 2004
Viceroy (Limenitis archippus), Fermilab, DuPage County, Illinois, 19 May 2001