It looks like you all are finding the "redback" spider, which is related to the black widow and equally as venomous, but they are native to Australia, not North America. So in this case killing them is probably the right thing to do, as they are apparently invasive.
Black Widow by: Anonymous
Last week I picked up my rack and a large shiny black spider with red on it's back was on it with an egg sack. I immediately killed it and squshed the sack on the ground. Are widow now having red spots on their back as well as on their underbelly or is it another kind of spider.
pixels by: Anonymous
this photo would be good under macro and more pixels!
confused by: Anonymous
I thought black widows only had the hour glass on the underside.
