I would like to know what species of spider this is.
It has lived in the crevice of the stair in my house for about 6-7 months. For its size am I right in thinking this is quire a long time? In all this time it has never moved from this location, but has cought another spider (slightly smaller), and as this picture shows a small carpet bug. It would be interesting to know what has sustained it for such a long period of time, and what its purpose is in living in this place.
Thanks for any information.
Thanks for the new photos. I can see now how small it is. It does look like a House Spider (Tegenaria sp), and I think it could be a baby Tegenaria. However, I believe this is more likely a small spider in the Liocranidae family, such as Apostenus sp.
Apostenus fuscus has a body size of 3-4 mm, which is closer to your specimen. If you sent us the live spider I'm sure that our expert would tell you exactly what this was.
Many thanks for your facinating answer. Just one more question. What is the lifespan of this species? As I said it has been living in this space for approx' 7 months. To a complete novice this seems a long time for such a small spider.
Apostenus fuscus is a rare spider in the UK, only known from vegetated shingle in the dungeness area. This is almost certainly a juvenile Tegenaria (the sheet web in the original photo is also suggestive of this). They can take two years to reach adulthood, and live for another year or so after.