Two-toothed Goldenring vs Malagasy Pill Millipede Assassin Bug

Side-by-side species comparison

Attribute Two-toothed Goldenring Malagasy Pill Millipede Assassin Bug
Scientific Name Cordulegaster bidentata Physorhynchus crux
Order Odonata Hemiptera
Family Cordulegastridae Reduviidae
Size 70-80 mm 15-22 mm
Habitat Mountains Underground
Diet Omnivores Omnivores
Regions Europe Madagascar
Conservation Near Threatened Least Concern

Two-toothed Goldenring

A large, dark goldenring dragonfly of central European mountain streams. It is distinguished from other goldenrings by two tooth-like projections on the occipital triangle.

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Did You Know?

Its larvae develop in tiny trickles of spring water no wider than a hand, unlike most large dragonflies.

Malagasy Pill Millipede Assassin Bug

A dark-bodied assassin bug with a characteristic cross-shaped marking on its thorax. It has robust forelegs adapted for grasping prey and a stout curved beak for injecting venom.

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Did You Know?

It specializes in ambushing pill millipedes, using its powerful beak to penetrate their armored exoskeleton.