Luna moth caterpillar

Here in southern New Hampshire we have been experiencing a heat wave with yesterdays temperature reaching about 102 degrees F.

Yesterday afternoon I spotted a large green caterpillar in the driveway and found it was dead. The caterpillar was that of a Luna moth (Actias luna).

I am not sure what the cause of death was but the prolegs were blackened and appeared damaged. My guess is the caterpillar was parasitized by some other insect possibly a parasitoid wasp. The caterpillar seems to have fallen from a shagbark hickory (Carya ovata) which grows beside the driveway.