Japanese Genji Firefly vs Shoreline Rove Beetle

Side-by-side species comparison

Attribute Japanese Genji Firefly Shoreline Rove Beetle
Scientific Name Luciola cruciata Bledius spectabilis
Order Coleoptera Coleoptera
Family Lampyridae Staphylinidae
Size 12-18 mm 5-7 mm
Habitat Rivers & Streams Wetlands
Diet Omnivores Omnivores
Regions Japan Europe, North Africa
Conservation Vulnerable Least Concern

Japanese Genji Firefly

An aquatic-larval firefly revered in Japanese culture, found near clean streams. It is one of the few fireflies whose larvae develop entirely in freshwater.

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Did You Know?

Annual firefly-viewing festivals called hotarugari have been held in Japan for over a thousand years in honor of this species.

Shoreline Rove Beetle

A burrowing rove beetle that constructs vertical tunnels in salt marsh mud. It feeds on algae scraped from wet sediment surfaces.

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Did You Know?

Mothers guard their eggs and larvae inside burrows, one of the few examples of parental care in rove beetles.