|A male Southern Hawker|
Different portions of a dragon or damsel eye may be tuned to certain frequencies of light, so that when we look at the insect, its eyes seem to be of two, or more, colours.
|A male Red-veined Darter, sadly deceased. From the top, its eyes are brown.|
|Whilst from below, they're blue|
But enough of the science.
Have you ever wondered why a dragonfly always appears to be looking at you, no matter where you are in relation to it? OK, technically, it is always looking at you, what with all the 360 whatnot going on, but take another look at the Southern Hawker at the top of the blogpost. Do you notice anything?
Yep, it looks like they have pupils, even though we know that they don't possess eyes like ours. I think this is due to the absence of light being reflected back out from those facets which are facing us, which makes them appear black and gives the 'pupil' effect.
And because of the wrap-around malarkey, wherever we are in relation to the insect, this will happen. No matter whether we're in front...
to the side...
|Willow Emerald damselfly|
I am always on my best behaviour around dragonflies. Just in case.