Hey everybody, I usually post in the physics section, but i'm a little puzzled about some recent encounters i've had with large beatles. I was in the basement yesterday and noticed a large reddish/blackish beetle crawling along the wall at a high velocity. I tried to lure the beetle into a corner with some food; a kind of simple experiment. I put a pile of sugar in one corner as the control, a pile of leaves in the other, some starchy foods in the third and some vegetables in the other corner. To my surprise, the beetle didn't show any preference and instead stayed on the wall. I've heard these bugs called wall beetles before but i'm not quite sure, could anyone help me identify this bug? I'm attaching a picture E.