Chinese Terrestrial Glowworm Firefly vs Bordered Great Diving Beetle

Side-by-side species comparison

Attribute Chinese Terrestrial Glowworm Firefly Bordered Great Diving Beetle
Scientific Name Pyrocoelia pectoralis Dytiscus circumflexus
Order Coleoptera Coleoptera
Family Lampyridae Dytiscidae
Size 14-22 mm 28-34 mm
Habitat Mountains Ponds & Lakes
Diet Predators Omnivores
Regions East Asia, China Europe
Conservation Least Concern Near Threatened

Chinese Terrestrial Glowworm Firefly

A large firefly with dark brown elytra and a bright reddish pronotum. Females are wingless and produce a steady glow. This species has been used extensively in Chinese bioluminescence research.

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Did You Know?

The mass collection of this species for commercial firefly-viewing events in China has raised conservation concerns.

Bordered Great Diving Beetle

A large British diving beetle similar to D. marginalis but with expanded yellow margins. It prefers larger, more permanent water bodies.

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Did You Know?

Females have deeply grooved elytra while males have smooth ones, making the sexes easy to distinguish.