As of 1993 there were 219 species of Cerambycids known in Missouri: http://beetlesinthebush.files.wordpress.com/2008/12/1994_macrae_cerambycidae-of-mo.pdf
Email the pics to this guy and he'll be able to tell you exactly what it is: http://beetlesinthebush.wordpress.com/contact/
Good luck!
Email the pics to this guy and he'll be able to tell you exactly what it is: http://beetlesinthebush.wordpress.com/contact/
Good luck!