This description fits the biggest Yellow Argiopes I've seen in my own yard.
Females are larger than males.

Here is another URL. This one has excellent, large-scale pictures.
http://www.fcps.k12.va.us/StratfordL...ack_and_yellow
_argiope.htm


The last picture at that site shows Argiope's characteristic zig-zag
signature in the middle of the web and her characteristic head-down posture.
Daniel B. Martin

Oddly enough, I didn't see any of these this year. There are usually
a few in my veggie garden. But I am seeing many of the Marbled Orb
Weavers around. They are building beautiful webs outside most my
windows. They don't have any white, but are colorful
black/yellow/red, and have a big heavy round body, and shorter legs
than the argioipe.
I have developed a real fondness for them.
Kira