I was splitting some dead standing ash today and I came across this little guy. Apparently they are a good type of beetle and they eat the bad ones plus the larvae? I didn't know there were good beetles... these things can survive in temps as low as -238F!! read the link its quite interesting
http://mobugs.blogspot.com/2010/03/red-flat-bark-beetle.html
http://mobugs.blogspot.com/2010/03/red-flat-bark-beetle.html