Wow, this was a hard one for me. For the first time, I actually had to go the PROMPTS, lol. When I saw 'reflectional symmetry', I immediately thought of Rorschach test pictures, and that was it for me.
I blobbed different inks and paints on some fairly thick paper, and after three or four tries, this one straight away revealed itself as an alien beetle from outer space ( of course, lol, this is me talking :-) ) -
You awl see zis, ya? If no, zen you vill tell me now vat you see, ya?
Ok, back to relatively normal, lol. Because it didn't look quite symmetrical, I cut it in half, scanned it, flipped it, stitched it together again, and added the beetle-y details -
And here you have it, Nacreous Sandbug Beetle from the deserts on Silica13, found on a space probe which crashed on Moonbase Alpha in 2047. Yep. Official name Coleoptera Silicania Nacchara -
Oh, I hear the doorbell, well would you know it, two men dressed in white, holding................. a straitjacket............... aaaaarrggghhhhhh