Viceroys are a medium to large size butterfly with a wing span of 2 1/2 - 3 3/8 inches (6.3 - 8.6 cm). Both gender essentially look the same and the best way to differentiate the two is by size, with the female usually being larger, and behavior in that males can typically be seen perched on vegetation and patrolling a territory waiting/watching for females.
Limenitis, the genus name, comes from the Latin for "marsh", and the the best place to look for this species is near lakes, creeks and streams where willows and cottonwoods are most common.
Viceroy butterflies typically mate in the afternoon. Females lay their eggs at the tip of host plant leaves (trees in the willow family (Salicaceae) including willows (Salix), and poplars and cottonwoods (Populus)), depositing only two or three eggs on a plant before moving to another. There are usually two or three generations of Viceroys born each breeding season.
ISO400, aperture f/11, exposure .004 seconds (1/250) focal length 300mm