These look a lot like bees but smaller and with big green eyes. And they hover. These guys love about any aphid. Ichneumon Wasps-another usually a tiny stingless wasp. The larger versions have very long ovipositors that look like stingers but are completely harmless.
Adults eat but their larva are the big eaters of aphids, mealy bugs, soft scales and spider mites.
Looks like an earwig but has no pincers and are smaller. Soldier beetle-Prey on aphids, beetle larvae, especially cucumber beetles, caterpillars and grasshopper eggs. Spiders-Spiders eat a lot of flying insects including white cabbage moths, grasshopper, flies and many beetles. Tachnid flies-These prey on numerous species of caterpillars, Japanese beetles, may beetles, sawflies and squash bugs. This is the largest and most beneficial groups of flies.