Suddenly in May we started to see many Mirrorball Spiders (Thwaitesia sp.). These gorgeous but tiny long-legged spiders have a glistening abdomen very much like a mirrorball (hence the name). The spiders are part of the very large family of Theridiidae Spiders.
The metallic blotches on their abdomen is a bi-product of their digestion. Rather than excreting this substance from the bodies, it gets diverted to the lining of the gut, forming these silvery patches.
The sparkling light exuding from their abdomen is actually an amazing camouflage for an animal that lives in the rainforest where there are a million sparkles from sunshine bouncing off raindrops, giving the spider a way to hide in plain sight.