closeup on the colorful red-eyed damselfly, erythromma najas sitting on a grass blade

200607 aaaa arthropoda arthropod coenagrionidae color erythromma insect lepidoptera nature odonata other zygoptera animal beauty biology blue closeup damselfly dragon dragonfly entomology eye eyed fauna invertebrate macro najas odonate outdoors pond predator red redeyed single summer undisturbed wild wildlife