Diaphania hyalinata
The dark areas near the fringe of the wings is an artifact.
A translucent support was used to reduce the harsh shadows when using a single flash.
The light from below resulted in dark areas where the wings overlap.
Reference: MPG
Reference: BugGuide.Net
Reference: Wikipedia

Reference: Nikon D200
1/250s f/20.0 at 150.0mm iso100 full exif