I'd like to know the same thing. I just killed one in my warehouse the other day. It is all white, but has the pinkish/orange hourglass on the belly and everything! I've never seen one before!
How Rare Is It To Find An Albino Black Widow Spider?
I killed one on my pillow the other day - it looked exactly like a black widow but completely white!
I saw one the other day. I was helping my family move a wood pile