The sight of a winged, ant-like insect near the house tends to create alarm for homeowners. In this case, however, the winged critter wasn't a termite but a winged ant, a relatively benign insect that doesn't cause structural damage.
There are chiefly three differences between a winged ant and a termite:
The presence of a swarm of winged ants doesn't mean that you'll get even more in the same location. The individual ants leave the group and don't return. If you find a winged ant or two, just sweep them up.