Male viceroys perch on vegetaion and patrol a territory waiting for females. Copulation is accomplished tail-to-tail, with the much larger female "towing" the male around. Unlike many other insects, (dragonflies, damselflies, robber flies, et al) viceroys are not capable of sustained, controlled flight while mated. (Not long after I wrote this, I saw two viceroys flying in tandem with the female towing the male in a very rapid, straight-line flight across my field of view, a distance of many dozens of yards - so obviously, they fly very well connected.)

Limenitis, the genus name, comes from the Latin for "marsh", but I often find viceroys in tall grass or weedy fields some distance from any water or swampy areas.