Has the appearance of being stenciled rather than imprinted. Could it be determined how the image was created?

No North American butterfly has that wing pattern; among the moths, certain Arctiid (tiger) moths of the Grammia genus have a similar pattern.

I would say it looks like an artist's impression of a tiger moth, the wing shape and the patterning being too perfect or idealized for the real thing.

We don't have any idea how it got there. She found it as pictured in the dust on her truck. Thanks for the info.

Then it appears that dust has been removed and the dark areas are the natural truck color. Looks more like Tlingit tribal art than an actual insect.

An embossed shirt could leave a trace like this if someone leaned against the truck....what part of the truck. Also could have been a rubber stamp. Interesting mystery!

Fascinating. My friend is Tlingit, so the plot thickens. :) We'll try following that thread. Thanks!