Arachnid ID help needed!

This may be very easy for a lot of people, but I am stumped with ID on this one. This is a microscrope photo, so the actual spider is ver small, I would say about 3-5mm??

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If anyone tells you this

MattPrince's picture

If anyone tells you this group is easy from photographs, ignore them ;)

It;s a young house spider - Tegenaria or there abouts.