metallic blue wingless insect
Our family enjoys finding critters in our backyard and identifying them on your wonderful site. But this time we are stumped. My son and I found this insect burrowing very slowly under a tree near our house in southeastern PA. By the next day, all that was left was a small pile of grit, similar to what you see next to an anthill. The insect seems to have succeeded in burying itself. Do you know what it is? It looks just like a carpenter ant except for that amazing faceted abdomen. Thanks in advance for your help.
You probably never thought to search our beetle pages since the Short Winged Blister Beetle or Oil Beetle is an atypical looking beetle.