Robber flies are cool bugs. Excellent hunters. They get a few honeybees but get all kinds of other insects, too. I have a path mowed through the briar patch leading to my beeyard...they use it as a low-level "flight corridor"...as I'm walking to the hives I'll get several leap-frogging ahead of me.
Dragon flies are another heavy hunter...got them, too. I'd say the dragon flies get more bees than the robber flies, but...I ain't got a scoreboard up.
Spiders seem to like the hives, too, they'll build the occasional web. What spooks me is reaching underneath the hives to pull some weeds or something and my hand to run into a spiderweb...I've killed a couple of blackwidows around the hives. Most were beneath some boards or tin laying on the ground but one has came from beneath a hive. I look before I reach.
Snakes....I haven't had that "pleasure" yet at my hives, though. We get timber rattlers and copperheads in the yard occasionally and the hives are much closer to the woods so I try to stay alert for them.
All these other critters are part of our environment...oh...and I try to remember, too, that the honey bees are the "introduced" species here.
Ed