https://extension.illinois.edu/insects/syrphid-hover-flies
Syrphid (hover) Flies | Insects | Illinois Extension | Illinois
Is it a bee? Is it a wasp? No, it’s a syrphid fly. Syrphid flies (aka hover flies, flower flies, corn flies, helicopter flies, and sweat bees, among other...
hover fliessyrphidinsectsillinoisextension