Long-Toed Water Beetle vs Iberian Glow-Worm

Side-by-side species comparison

Attribute Long-Toed Water Beetle Iberian Glow-Worm
Scientific Name Stenelmis crenata Lampyris iberica
Order Coleoptera Coleoptera
Family Elmidae Lampyridae
Size 2-3.5 mm 12-20 mm
Habitat Rivers & Streams Woodlands
Diet Omnivores Predators
Regions North America Europe
Conservation Least Concern Least Concern

Long-Toed Water Beetle

A small riffle beetle with elongated tarsal claws for gripping rocks in fast currents. Both adults and larvae are entirely aquatic.

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Did You Know?

Adults can live for several years underwater, far longer than most beetles.

Iberian Glow-Worm

A glow-worm firefly found in Spain and Portugal with wingless, luminous females. It inhabits Mediterranean scrublands and open woodlands.

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Did You Know?

Female glow-worms can control the intensity of their glow and will extinguish their light immediately if disturbed by a predator.