Little Tan Short-Horn Sedge vs Emperor Dragonfly

Side-by-side species comparison

Attribute Little Tan Short-Horn Sedge Emperor Dragonfly
Scientific Name Glossosoma nigrior Anax imperator
Order Trichoptera Odonata
Family Glossosomatidae Aeshnidae
Size 5-8 mm 66-84 mm body, 78 mm wingspan
Habitat Rivers & Streams Ponds & Lakes
Diet Omnivores Omnivores
Regions Eastern North America Europe, Africa, Asia
Conservation Least Concern Least Concern

Little Tan Short-Horn Sedge

A small, abundant caddisfly of eastern North American streams. Larvae build tortoise-shell-shaped cases of fine gravel and are important grazers.

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Did You Know?

Grazing by dense populations can visibly reduce algal cover on stream rocks.

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.