Zipper Spider or Writing Spider

Description:

The genus Argiope includes rather large spiders that often have a strikingly coloured abdomen. These spiders are distributed throughout the world. Most countries in tropical or temperate climates host one or more species that are similar in appearance. The etymology of the name is from a Greek name meaning "silver-faced".

Habitat:

In my garden.

Notes:

2nd photo shows his underside.