I was watching a wildlife documentary several years ago. The commentor said that scorpions glow under black light (UV light) and proceeded to demonstrate it and it was fascinating to see all those glowing bodies on the desert floor. In passing, he mentioned that it is not known why scorpions glow under UV light.

This struck me and I kept thinking what evolutionary advantage this would have given to scorpions. Is this useful for finding mates? Possibly, if scorpion eyes are sensitive to UV light, but I do not know that.
Is this useful for finding food or prey?  I thought. . duh.. . . .

I left it at that, after all, my days are quite 'cramped'.

One afternoon, while visiting a butterfly 'farm', I saw these beautiful creatures under a screen dome feeding on a sugar solution on plastic saucers. One of the guides mentioned that the plastic saucers reflect UV light because butterflies 'see' flowers in the ultraviolet. It means flower petals reflect UV light. And butterfly eyes are sensitive to UV light.

I have not investigated this yet, as I do not have a source of 'black light', but if true, then I guess the scorpion is trying to mimic a flower!!! And the position of its sting poised over its dorsum is just in the right place if you are trying to sting a bee (if bees see in the UV spectrum also) or butterfly trying to land on you for a sip of nectar.

If my musings are proven to be accurate, it is hard to believe that the fearsome scorpion is mimicking flowers.