Cinnabar Flat Bark - Cucujus cinnaberinus, larva

There is a viable population of Cinnabar Flat Bark in the Šešuva Reserve, there are many of them under the bark of aspens and oaks, but I found this larva under the bark of a dead spruce, there were also beetle remains there: wings, pronotums. In the same block I found another larva under birch bark.