Stilt-legged Fly vs Mountain Dance Fly

Side-by-side species comparison

Attribute Stilt-legged Fly Mountain Dance Fly
Scientific Name Rainieria antennaepes Empis pennipes
Order Diptera Diptera
Family Micropezidae Empididae
Size 8-12 mm 5-8 mm body length
Habitat Forests Rivers & Streams
Diet Parasitoids Predators
Regions North America Europe, Alps, Scandinavia
Conservation Least Concern Least Concern

Stilt-legged Fly

A slender fly with banded legs that it waves to mimic parasitoid wasp antennae.

💡

Did You Know?

It waves its front legs continuously to resemble an ichneumon wasp walking on four legs.

Mountain Dance Fly

A predatory fly with feathery leg fringes used in aerial mating displays. Males offer prey gifts wrapped in silk to females during courtship.

💡

Did You Know?

Males with the most elaborate feathered legs are preferred by females during mating swarms.