Water Veneer Moth vs Long-tailed Dance Fly

Side-by-side species comparison

Attribute Water Veneer Moth Long-tailed Dance Fly
Scientific Name Acentria ephemerella Rhamphomyia longicauda
Order Lepidoptera Diptera
Family Crambidae Empididae
Size 10-14 mm wingspan (males) 5-8mm
Habitat Ponds & Lakes Ponds & Lakes
Diet Herbivores Predators
Regions Europe, North America North America
Conservation Least Concern Least Concern

Water Veneer Moth

A unique aquatic moth whose larvae live entirely underwater in freshwater lakes. Females are often wingless and spend their whole lives below the water surface.

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Did You Know?

Wingless females mate underwater and never leave the lake where they were born.

Long-tailed Dance Fly

A small dark fly where females inflate their legs with air to appear larger during mating swarms. Males present nuptial gifts.

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Did You Know?

Females inflate their legs with air bubbles to look larger and more impressive to choosy males in mating swarms.