Brown Leaf Weevil vs Japanese Genji Firefly

Side-by-side species comparison

Attribute Brown Leaf Weevil Japanese Genji Firefly
Scientific Name Phyllobius oblongus Luciola cruciata
Order Coleoptera Coleoptera
Family Chrysomelidae Lampyridae
Size 4-6 mm 12-18 mm
Habitat Woodlands Rivers & Streams
Diet Herbivores Omnivores
Regions Europe Japan
Conservation Least Concern Vulnerable

Brown Leaf Weevil

A brown-scaled weevil commonly found on hawthorn and other hedgerow shrubs. Less colorful than its green relatives but very abundant. Adults notch leaf edges.

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Did You Know?

Creates characteristic U-shaped notches along leaf edges that reveal its presence even when the beetle is hidden.

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.