Thanks for your help Rossco.
Yes I've got the Collins guide book and have just sped read through the section on
Identifying Spiders in the Field - interesting idea - I'll read it again more carefully later.
To be honest I don't find the illustrations easy to use as a quick guide - in a large part I think due to the variability of individuals within a species. Anyway I took a look at Pardosa and I can see why it's such a problem id'ing to species level (even genus).
Thanks again,
Bruce