moth like black and white bug
August 8, 2009
My cat found this bug today and tried to bring it inside, I’ve looked all over the internet and can’t figure out what it is.
This is a Northern Ash Sphinx or Great Ash Sphinx, Sphinx chersis, and it is newly metamorphosed, which may be why you had difficulty identifying it. The caterpillar pupates underground, and once it “hatches” it needs to dig to the surface. It is vulnerable at that point, which is probably why your cat found it. You can see more images and get more information on Bill Oehlke’s wonderful website.