As found at work last week:

(Yep, that’s 1cm graph paper
it’s on - scale it to size in your viewer and tremble!)
Tegenaria parietina, or the Cardinal Spider. Britain’s biggest by far, as
far as legs are concerned. Arachnologists prefer to cite body length which
leads to lots of disputes. None of the others with similar-sized bodies are as
big as your hand though.
Unfortunately the individual
above is deceased - it didn’t seem well when I found it and expired a few days
later, but at least I’d saved it from a Hoovery doom. A couple of sessions
trying to photograph it live proved fruitless as, although quite slow, it would
not sit still out in the open. I photographed it first on a plain background
but no-one would believe me that it was printed life-sized. I’m really annoyed
with it: I’ve found a number of these before but have never had the opportunity
to try and catch and retain one - and this one karks on me!
Much more cooperative and
perfectly alive and well is his little cousin below, a good-sized example of T.
gigantea (= T. duellica nowadays, apparently), who conveniently
appeared on my hallway wall on Tuesday night and so could be photo’ed with the
same set-up. These are the common House Spiders found all over the South-East
and elsewhere. (In some areas, notably the South-West and North-West, there are
other very similar species, but they are much the same size).
Note both these specimens
are males, since it is they who go wandering about in late summer looking for
females, who generally stay put. In both species the females have slightly
larger bodies but relatively shorter legs so it is the males who are most
impressive!
For those interested:
Span leg I - leg IV:
T. parietina 140 mm / 5.5 inch
T. gigantea 78 mm / 3.1 inch
Leg I alone on parietina
exceeds 75 mm: leg I - leg I span is
around 6 inches!