What other than
The web is worked in 'Whipped Stem'
There are many stitches that can be 'Whipped' it simply means wrapped with another thread in this case the web was worked in a simple black stem stitch then whipped with silver thread.
Little 'Webster' the spider was created from two different stitches
a 'Woven Spiders Wheel' for the body
and a 'Wheatear' stitch for the head.