Mountain Dance Fly vs Giant Hawaiian Darner

Side-by-side species comparison

Attribute Mountain Dance Fly Giant Hawaiian Darner
Scientific Name Empis pennipes Anax strenuus
Order Diptera Odonata
Family Empididae Aeshnidae
Size 5-8 mm body length 10-13 cm
Habitat Rivers & Streams Forests
Diet Predators Predators
Regions Europe, Alps, Scandinavia United States
Conservation Least Concern Endangered

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.

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Did You Know?

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

Giant Hawaiian Darner

The largest dragonfly in the United States, endemic to the Hawaiian Islands. It patrols forest streams and pools in native montane forest.

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Did You Know?

Ancient Hawaiians called it the 'pinao' and considered it a guardian spirit of fresh water.