Malagasy Aquatic Beetle vs Ogasawara Damselfly

Side-by-side species comparison

Attribute Malagasy Aquatic Beetle Ogasawara Damselfly
Scientific Name Hydrophilus madagascariensis Rhinocypha ogasawarensis
Order Coleoptera Odonata
Family Hydrophilidae Chlorocyphidae
Size 30-40 mm 3-4 cm
Habitat Rivers & Streams Rivers & Streams
Diet Predators Predators
Regions Madagascar Japan
Conservation Least Concern Critically Endangered

Malagasy Aquatic Beetle

A large, shiny black aquatic beetle with a streamlined oval body. It carries a bubble of air beneath its body for underwater breathing and swims with alternating leg strokes.

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Did You Know?

Despite being called water scavenger beetles, the larvae are fierce predators of snails, tadpoles, and other aquatic invertebrates.

Ogasawara Damselfly

A striking damselfly endemic to the Bonin (Ogasawara) Islands of Japan. Males display iridescent blue wing patches during courtship.

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Did You Know?

The Ogasawara Islands are sometimes called the 'Galapagos of the Orient' for their unique endemic species.