Silver-spotted skipper

After running an errand in Batavia, IL, stopped off at the grounds of the Fermi National Accelerator Laboratory (Fermilab, http://www.fnal.gov/).  It may seem like a strange place to look for a nature photo, but there are extensive grounds at Fermilab of which a portion are open to the public.  Was looking for a migrating bird, but in an infrequently mowed area there were many butterflies feeding on pink clover and that was that.

Although is looks like a cross between a moth and a butterfly, the silver-spotted skipper is a type of butterfly.  It is relatively large for a skipper, with a wingspan of about 2 inches/5 cm.  The silver-spotted skipper is a fast straight flyer and has bent knobbed antennae.

Note the reflection/refraction off the compound eye.