Hi please see attached photos of spider found today when moving things out of our very cluttered shed. Worried it's a black widow and not sure what to do/who to contact (as out of hours). Please note there are eggs too and a Red Admiral butterfly (lunch?).
My boyfriend has now caught this (despite my protests) in a glass and says it has no red markings on the underside. I therefore believe it to be the following, but would still appreciate identification by someone in the know:
Don't worry, it's not a black widow - your revised identification is nearer the mark. It looks like one of the False Widow spiders, probably Steatoda nobilis, possibly S. grossa - I can't see enough of the markings on its back.
More pictures for reference can be found here:
Steatoda nobilis is the species that the media like to get us all over-alarmed about - they can bite but aren't aggressive. Bites are not common and tend to happen when the spider feels physically threatened eg. due to rough handling or prodding or when accidentally caught in clothing against the skin. If you're concerned, its worth reading this and the associated links: http://www.nhm.ac.uk/nature-online/life/insects-spiders/false-widow/index.html
A cluttered shed isn't an unusual place to find one. They seem to like our built structures but are quite happy outside - I have several in webs within feet of the back door here. Females tend to stay in their web - often high up - while males wander in seach of mates, sometimes coming indoors in the process.
Hope that's of some help.
Thank you for your reply. I am convinced it was the s. grossa as no red markings but even in good light it looked very black - not at all brown like the other species. Will have a few more when those babies hatch...