Saint Andrew's Cross Spider

Description

These types of spiders are known for spinning intricate web decorations called stabilimenta. The functions of stabilimentum are still debatable but stability, visibility, camouflage, attracting prey, attracting mates and having excess silk are all some theories that researchers have proposed. The zig-zag ribbons of silk can form a full or partial cross, or be missing altogether, and they reflect ultraviolet light strongly, which may draw insects to the web. When threatened, the spider may drop from the web or shake it until spider and cross become a blur.