Originally Posted by HeyPK
Wood borers are usually fairly specific to the species of tree, if we are talking about long horned beetles, family Cerambycidae. What did these critters look like?
Click on the above link and view the 5 pics. By everything I've read, I think this is a Black Polycaon Beetle. The "shavings" are actually "a powder." (check), the hole is round and not oval (check), it is fairly large that you can poke a pencil down it (check), the critter is about 1" (check)...the inner jaws are red (not shown in pic, but check). Gotta be this critter.
I've found a wide range of opinions about what wood it is attracted to, how much damage it will cause (if any). I've consulted an online Entomologist (who should reply within three days), and will consult our local, professional "bug guy" tomorrow.
I've ordered the Borax and will apply it to the stand no matter what anyone says.
I need that piece of mind with all the weight it will be carrying.
This is exactly what it looked like right side up: http://www.corkyspest.com/wood_pests/blk_poly.html