Well, that's another WTF Wednesday done and dusted - thank you for playing along and letting me go wild in the GIF section!
These lovely spiders build a zig zag cross in their webs, most of the time, occasionally just one line or in this case none. The young spiders build a hilarious looking zig zagging messy circle. Ah, kids. There's a few ideas about the purpose of the cross. It reflects ultraviolet light which attracts insects and you know what spiders love to eat... Also it apparently acts as a deterrent for any birds out there.
Either way, this is one gorgeous looking spider and reminds me of an indigenous dot painting. Don't mind the hairy legs.
St Andrew's Cross Spider
Northern Illawarra