This is a strange bug from PHIL, the CDC’s Public Health Image Library. Not the kind of bug the CDC usually deals with… it’s an unidentified insect found, mysteriously enough, on the outside of an unidentified dragonfly. Sticking to an antenna, in fact.
As PHIL says, Though this arthropod was found here to be, what appeared to be, “residing” on the dragonfly’s body, it also may merely have been picked up by the dragonfly, as was the case with other debris such as pollen granules, or general vegetative matter, and not living as a parasitic inhabitant. .