I think it is termed as ocelli or simple eye. Most probably it is a light sensitive organ.Whoaaa..the eye is purple . What is that the red colour near the eye? Could it be the eye too? Or something else?
Thank youNice picture ! I really like the background diffusion and the details on the head of your subject..and this purple eye
It's an image of a rice bug (Leptocorisa). It was taken with Sony A7iii with 55-210mm lens with Raynox DCR-250 attached. I have used external flash with diffuser. Hope you like it.
View attachment 20707
f/16, 1/200s, ISO640, FL - 147mm