Wasp Spider Argiope bruennichi

Wasp Spider female
Wasp Spider underside
The female Wasp Spider, shown above, is large and has attractive yellow and black bands on a white background with banded legs. The male is significantly smaller.
Wasp Spider
She is an orb weaver spider, building a large orb web.
Wasp Spider
Wasp Spider
Topside and underside with packaged-up prey; prey looks like a wasp but the body segments seem too large.

The photos immediately below, of Wasp Spiders mating and the aftermath, were kindly provided by Bob Clark, taken in south London:

Wasp Spider
Wasp Spider
Wasp Spider
He explains: "I take this opportunity to attach a lovely ‘Wasp Spider’ also referred to as ‘Tiger Spider’ Argiope bruennichi which has popped up in greater abundance than I have seen before because of grassy areas being left uncut. From the internet I see it was introduced c1922 and is confined to southern parts of England; though has been detected toward the Midlands now."
"I had the delight (if it should be that) of watching a much smaller male endeavour mating upon which he was unceremoniously wrapped up and gobbled down by his ‘formidable lover’.
My ‘spider mating’ is not clear as I had to spy the goings-on’ through Mrs Spider’s net curtains (web) which fuzz the image rather. As also Mr. Spider was parcelled up for the missus supper."
Wasp Spider Wasp Spider with her egg sac -- photo also by Bob Clark. Egg sac far bigger than she is.