Conspicuous, usually zig-zagged, silk structure in some orb-weaver spider webs
Argiope flavipalpis adult femaleAn Argiope juvenile female spiders both same genus on the stabilimentum at the center of the web.
A stabilimentum (plural: stabilimenta), also known as a web decoration, is a conspicuous silk structure included in the webs of some species of orb-webspider. Its function is a subject of debate.