While repairing a dishwasher in a customers house today and crawling around on her floor, I saw a spider crawling up my forearm, nothing unusual there in my job. I knocked it off so I could study it closer. I didn't recognise it as a species I had seen before, so I popped it in a container to get a second opinion. I took it to our local NTS rangers, who went through all their spider ID guides with no success. We have deducted that it may be a non native species and they are having an expert have a look at it. The customer has visited the USA last year and Catalonia earlier this year so its a possibility that it has hitched a ride over in her luggage.
Anyway, before jumping to conclusions, I would like to find out if anyone can identify it on here. The spider is totally gloss black with no other markings. It is the same colour all over. There are some small dimples on its abdomen. The silk it span in the container almost resembled the web of a daddy long legs spider, messy and unpatterned. Overall it was about 15mm long (no bigger than a 20p piece).