Emperor Dragonfly vs Southern Long-legged Fly

Side-by-side species comparison

Attribute Emperor Dragonfly Southern Long-legged Fly
Scientific Name Anax imperator Chrysotus gramineus
Order Odonata Diptera
Family Aeshnidae Dolichopodidae
Size 66-84 mm body, 78 mm wingspan 2-3 mm
Habitat Ponds & Lakes Ponds & Lakes
Diet Omnivores Herbivores
Regions Europe, Africa, Asia Europe, Asia, North America
Conservation Least Concern Least Concern

Emperor Dragonfly

One of the largest dragonflies in Europe. Powerful flier that patrols territories along waterways. Can fly at speeds up to 54 km/h and catch prey mid-flight with near-perfect accuracy.

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Did You Know?

Emperor dragonflies have a prey capture success rate of 95% — the highest of any predator on Earth. Lions succeed only 25% of the time.

Southern Long-legged Fly

A tiny, brilliantly metallic green long-legged fly commonly found on vegetation near water. It runs rapidly across leaf surfaces hunting for small prey.

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Did You Know?

Despite their tiny size, dolichopodid flies are among the most species-rich predatory fly families globally.