What is this bug?

What is this bug?

Observation - What is this bug? - Global. Description: I found this on its back in my kitchen. I trapped it in a baggy since I didn't know what it was. I f

I found this on its back in my kitchen. I trapped it in a baggy since I didn't know what it was. I found a dead one before. It's about the size of an American quarter. It has antennae and 6 legs. Dark brown. Can't tell if it has wings or not.