Thanks. Emily says it is a male black widow.
I have since found half a dozen more adults, as well as babies. Just having a minor freak here. Hate using chemicals but this is a safety issue.
Phage: chemicals are not all that effective against widows (brown or black). The best control of widows is making sure you sweep webs regularly and destroy egg sacks (we use a butane torch and go out on patrol). The spiders themselves must be a contact kill, whether that be a wasp spray or a show. "Normal" pesticides and barrier pesticides don't work on these guys.