Extension > Garden > Diagnose a problem > What insect is this? > General/curiosity insects > Insects with obvious wings: greater than 1 inch long or wingspan is 2 inches or more > Orangedog (giant swallowtail)
Orangedog (giant swallowtail)
David Cappaert, Michigan State University
Size: 4 - 5 1/2 inches long
Description: Forewings are black with a striking diagonal yellow bars running across each wing. They also have a yellow "eye" in each tail wing.
Where/When: Not common, but can occasionally be found around flowers during the summer as migrants from the South.
Significance: A particularly large and attractive butterfly.