Hairy! Hollow!
Want to know how the back of a dragonfly’s head looks like?
Pink hairy.
White hollow.
Cool?
Front: Like wearing helmet.
The head of a dragonfly is large and concave, and is located on a flexible neck that consists of six segments. On the first segment of a dragonfly’s head are three tiny "eyes", or ocelli, arranged in a triangle (refer to last picture). These are believed to help a dragonfly measure changes in the amount of light. Dragonflies have very good vision and therefore, rely little on their other senses. Their mouth is adapted for biting, making them efficient hunters. They have prehensile labium, extendible jaws, which can be extended forward from underneath the head faster than most prey can react, making their bite fatal to the prey (I saw how it works on tv before. It’s awesome!). Dragonflies also have a pair of short, tiny bristle-like antenna.
Source: http://www.scsc.k12.ar.us/2001migration/Projects/RoarkJ/