Green Cloverworm moths, Plathypena scalar, have reached large numbers in Indiana this year. They are primarily a southern species that migrates into Indiana. They can be a pest of soybeans in the South and Midwestern states occasionally report damage. However, the large numbers of adults do are not accompanied by crop damage this year in Indiana.
The increased numbers of green cloverworm adults correlate with hot humid air masses that afflicted Indiana this August. The black, triangular-shaped moths are attracted to light and made appearances on screens across the area. Naturally, people object when the come indoors. However, my cat thinks they are a new toy.