YUCK!! Debbie it looks like an ant we get each year about this time. The exterminator told us they came from cement and yes, mine do seem to come in the laundry room and we live on a slab. I am thinking he called them carpenters but not sure. He did not think he needed to come out and told us we could just use a store-bought spray on them. I don't know if they are the same though - ours are about half the size of your pictures - maybe a half inch long. YUCK!!!