Darkling beetle - they can get very big.
California broad-necked darkling beetle (according to Google) I found this beetle 100 feet from our campsite in Clearwater, BC. It is a darkling beetle. They are similar to ground beetles but are usually have a matte sheen versus a shiny one. I wrote about the differences between darkling beetles and ground beetles in a blog you can find here . When I disturbed it, the beetle lowered its head and raised its abdomen up in the air. There was a dark, shiny liquid that was emitted from glands located in its back end. I have seen this behaviour before in other darkling beetles. My brother and I found a much bigger one in Texas that did the same thing. The dark brown liquid is made of benzoquinone, which is a noxious chemical that smells bad and tastes worse. It is used defensively to prevent an attack from some potential predator. The beetle isn't fast, does not have strong jaws, and is easily seen if in the open. It uses the chemical as ...