Our group saw 12 species of butterflies during the 90-minute walk, and i saw several more on a later walk along the park's extensive trail system.
The park is open from dawn till dusk and features a terrific butterfly garden and fields filled with Bee Balm and Golden Rod and milkweed and Butterfly Weed ...
Chester is about an hour's drive but a great place to spend a morning or afternoon.
More on the Kay Center here.
A list of butterflies and moths seen during the event follows.
Eastern Tiger Swallowtail
Wild Indigo Duskywing
Hummingbird Clear-winged Moth
Snowberry Clear-winged Moth
Butterflies seen shortly after the event: