From Ashlyn Fowler

While your first instinct might be to take a step back from what looks like a massive wasp or hornet, this is actually a master of deception: the Barred Bee Fly (Exoprosopa fasciata). They are one of the coolest bee- mimic flies cruising right here through our NC yards!

4 Fascinating Features

Master Mimicry: To scare away hungry predators, these insects evolved a brilliant defense technique known as Batesian mimicry. Their stout bodies and bold black-and-tan striped abdomens perfectly trick the eye into thinking they possess a painful sting!

The Fly Giveaway: Unlike bees and wasps which have four wings, these guys only have two large, smoky -tinted wings. They also sport enormous, wrap-around "fly eyes" that nearly touch at the top of their head, instantly exposing them as true flies!

Precision Hovering: They are incredibly agile aerial acrobats. They can hover perfectly still in mid-air right in front of a flower and instantly dart sideways or backward faster than a blink if they sense a threat.

The Egg Flickers: Their reproductive process sounds like a sci-fi movie. Female bee flies will deliberately hover directly over the underground nests of beetles or wasps and physically "flick" their microscopic eggs right down into the entry tunnels!

3 Ecological Observations

Elite Native Pollinators: As adults, they are purely peaceful vegetarians. They spend their days drinking nectar and feeding on pollen. Because of their fuzzy bodies, they serve as highly effective pollinators for our late-summer wildflowers.

Natural Population Regulators: Once the eggs hatch underground, the tiny larvae act as natural biocontrols. They feed on the larvae of lawn-damaging pests like June beetles, keeping local insect populations perfectly balanced!

Core Food Chain Link: Even with their wasp-like disguise, experienced local songbirds and dragonflies see right through the trick. They rely on these large, chunky flies as a nutrient-dense food source to power through the late season.

How to use it

Finding these heavy-duty hoverers is a great indicator of a pesticide-free homestead! It proves you have a healthy plant mix to feed adults and a thriving soil insect web. Plant late-summer goldenrod or coneflowers to attract them.

Stay safe warning

While these bumpy neighbors look intimidating, their buzz and mimic markings are just for show! They are 100% harmless to humans and pets, with no stingers or bites. Give them respectful space to work and enjoy the aerial show!