Agriopes are a common sight in gardens, often growing large enough that they are impossible to ignore. Easier to miss are the kleptoparasitic spiders known as dewdrop spiders. Though they are capable of building their own web, they tend to bunk up with another spider. They'll steal some meals from their roomie, but sometimes they'll just tidy up the web eating the catches that are too small for the other spider to bother with. They have to be careful not to upset their roommates or they could be the next catch!
Silver Agriope photos: http://nathistoc.bio.uci.edu/spiders/Argiope%20argentata.htm
Dewdrop Spider Information:https://sta.uwi.edu/fst/lifesciences/sites/default/files/lifesciences/images/Argyrodes%20elevatus%20-%20Dew-drop%20Spider.pdf