Wasp Spider (Argiope bruennichi)
Post mating, the female Wasp Spider A. bruennichi weaves in the region of five flask-shaped egg cocoons, typically containing several hundred eggs, in the higher parts of the vegetation. The eggs overwinter in their cocoons, hatching the following spring.
Roberts, M.J. (1995). Spiders of Britain & Northern Europe. London: HarperCollins.