Argiope 2 was completing her web building but not yet starting her decorations (stabilimenta) - I returned home, fetched a lawn chair to address comfortable waiting.
I set up in front of her web - and within 20 min, she started eating her old silk - I suppose this is a recycle exercise. I made a video (below) - then after maybe 10 min - for digestion, I suppose, she started her painting with ribbons of silk.
Here is her web prior to writing
Argiope 2 doing something
More web weaving
Recycling silk - she is pulling old silk from the central part of her web with her palps and eating it
Here is the video of recycling silk
Here is an image of extruding a ribbon of silk. Web prep is from 0:0 to 0:40 and writing the ribbon starts at 0:40
A cropped version showing more detail of extracting silk and guiding it with her legs
Another view - but poor focus on her spinnerets
Here is a video of ribbon writing - extruding the band of silk, guiding it with her legs and depositing it on her web
Extruding silk ribbons and attaching to her web
Closer view
Starting the stabilimenta - web decorations (purpose not really understood)
Extruding ribbon for the upper stabilimentum
Finishing writing the upper stabilimentum
Finishing writing the upper stabilimentum
The web of Argiope 1.
C. Frank Starmer