Some Argyrodes elevatus and some not sure. - Argyrodes elevatus
Link to close up of this individual follows these comments and thumbs.
I have added a number of thumbnails of images to this one for context since all shot together. A colony if you will. They are not linked since they are not one individual. Within the set of thumbs, those that I know are same individual are linked to each other.
All were taken Sept 27 and Sept 29 on three Argiope aurantia webs a short distance apart. All appearance variations shown were on all three webs. Selection was for best images. Windy conditions meant lots of out of focus misses.
Many seem to be Argyrodes elevatus. Others are not so certain since while they are similar size, shape, and behavior, and seemed to interact, they have significant patterning in orange, yellow, brown with or without silver. Images include female, male, including m-f interaction, and apparent immatures (based on size down to less than 1 mm.) Some group shots for scaling. Also includes feeding on wrapped carcass and on unwrapped insects too small to interest Argiope aurantia. A few show them adding silk to the web including pulling two parallel strands together to attach mid-span.
Some images have additional comments.
Image above with Argiope aurantia for scale
Thumbnails for images taken in locations described. Click on image to view.
Argyrodes elevatus
Argyrodes/Faiditus/Neospintharus/Rhomphaea