What I wrote was probably out of date. There has been a revision of Tegenaria genus and some of the larger species have been lumped together in one species called Eratigena (a synonym* of Tegenaria) atrica - this incorporates T. gigantea, saeva and atrica. But I don't know if everyone accepts it.
* ooops, I meant anagram
Message was edited by jaguarondi - to add last line