So last weekend, I spotted this tiny fly (5-6mm) drinking from a flower. Using my finely-honed bug-stalking skills, I slowly moved in, and actually got close enough for a shot without scaring the insect off. I was feeling pretty good about myself until I noticed the fly was... dead. It seems to have been attacked by a fungus, which left it posed nicely in a spot up off the ground where it could shed spores to infect the next victim. (The lower photo shows this more clearly.) I've seen similar bug-zombiefying fungi in rainforest environments a lot, but I guess it happens in deserts too.