I found this little red guy in some firewood, between the wood and the bark. It’s about the size and shape of a firefly but is a deep magenta color with a little black spot at the posterior and is flatter. Any ideas?
This is a Flat Bark Beetle, Cucujus clavipes. These beetles are well adapted for living under loose but close fitting bark. Both adults and larvae feed on insects. Cucujus clavipes is one of the largest and most brilliantly colored species in the family. It is especially common under the bark of freshly felled poplar and ash trees.