Family Pieridae
Caterpillar food: low-growing plants in the Compositae – aster family (Bugguide)
This tiny butterfly doesn’t overwinter in Wisconsin – it flies up from farther south. It’s wingspan – with wings spread – is about one inch. It’s the smallest North American sulphur. It’s not common here – I’ve only seen it a few times. I saw several during the summer of 2007, and even more in the summer of 2012.
This was the first one I ever saw – in Pepin County, on the roadside in front of the farm stand where we’d stopped to buy produce.
7/25/2007
That fall I saw quite a few Dainty Sulphurs on our driveway – never more than a few at a time, but they were there nearly every sunny day until the weather got cold.
10/7/2007 – on our driveway at the farm

The next time I found Dainty Sulphurs was in late August 2012. There were at least 5 or 6 fluttering around our driveway, near the house.
9/6/2012
9/8/2012
9/9/2012




