Yellow Swarming Fly vs Creoleon Antlion

Side-by-side species comparison

Attribute Yellow Swarming Fly Creoleon Antlion
Scientific Name Thaumatomyia notata Creoleon plumbeus
Order Diptera Neuroptera
Family Chloropidae Myrmeleontidae
Size 2-2.5 mm 55-75 mm wingspan
Habitat Grasslands Heathland
Diet Predators Predators
Regions Europe Southern Europe, Middle East, North Africa
Conservation Least Concern Least Concern

Yellow Swarming Fly

A tiny yellow fly famous for forming enormous hibernation aggregations in buildings, sometimes numbering millions. Larvae are predatory on root aphids in grassland.

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Did You Know?

Can form hibernation clusters of millions in attic spaces, with individual aggregations weighing several kilograms.

Creoleon Antlion

A robust Mediterranean antlion with lead-grey coloring on the thorax. Found in dry, warm habitats across southern Europe and the Middle East.

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Did You Know?

Unlike classic antlions, its larvae lie buried in soil without building funnel traps.