Parasitized it looks like, making a stab at id.
"An insect made in the 80s" according to one member of our party. Despite spending some time trying to get the exposure right to capture the glow and the animal, I still failed to get the head in focus. Oi.
Likely larva of common eastern firefly, but it’s the first time I’ve noticed one of these, so I’m not totally sure. Found several inches down in damp garden soil.
Newly emergent adult with exuviae of larvae. On Butternut ( J. cinerea).