Robert
Yes, as Marna says this is a butterfly called the common wood-nymph. They are found in open fields, prairies, woodland edges, and savannas.
The butterflies feed on nectar, tree sap and rotten fruit.
And as Marna said, the larvae feed on grasses such as oatgrass, KY bluegrass, bluestems, and purple top.
They are found through out North America...tho bugguide reports that they are not found in the SW, TX, southern FL or Northern ME.
Butterfly by: Marna (CT)
This is a Common Wood-Nymph which are part of the satyr family. Common all over the US but very common in the arid west. Their larval foodplant is grasses.
