Not all flies are bad: Stomorhina lunata
Today I bring to your attention a fly that you may have seen rummaging on your flowers: Stomorhina lunata.
This fly is different than a house fly because it has a longitudinally striped torso, and the abdomen has yellow stripes like the bees.
Is an important egg predator for grasshoppers, and only asks some polen in exchange. Which looks like a fair deal to me!
https://www.inaturalist.org/taxa/326655
