Reunion Riverjack vs Japanese Giant Stonefly

Side-by-side species comparison

Attribute Reunion Riverjack Japanese Giant Stonefly
Scientific Name Zygonyx elisabethae Oyamia lugubris
Order Odonata Plecoptera
Family Libellulidae Perlidae
Size 5-7 cm 25-35 mm
Habitat Mountains Mountains
Diet Predators Predators
Regions Reunion Japan
Conservation Critically Endangered Least Concern

Reunion Riverjack

A large dragonfly endemic to the island of Reunion in the Indian Ocean. It patrols waterfalls and fast-flowing mountain streams.

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Did You Know?

Deforestation and damming of Reunion's rivers have severely reduced its available breeding habitat.

Japanese Giant Stonefly

A large predatory stonefly found in mountainous streams of Japan. Nymphs have powerful mandibles for capturing prey in swift currents.

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Did You Know?

It is an indicator of pristine water quality in Japanese mountain streams.