Giant Robber Firefly vs Red-Headed Cardinal Beetle

Side-by-side species comparison

Attribute Giant Robber Firefly Red-Headed Cardinal Beetle
Scientific Name Photuris lucicrescens Pyrochroa serraticornis
Order Coleoptera Coleoptera
Family Lampyridae Pyrochroidae
Size 12-16 mm 14-20 mm
Habitat Meadows Hedgerows
Diet Predators Predators
Regions Eastern North America Europe
Conservation Not Evaluated Least Concern

Giant Robber Firefly

A large predatory firefly from eastern North America that mimics the flash patterns of Photinus species. Females lure Photinus males to consume them.

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Did You Know?

Females can switch between multiple flash patterns, mimicking different prey species on a single evening.

Red-Headed Cardinal Beetle

A vivid red beetle with serrated antennae found on flowers and under bark. Larvae are predatory and live beneath the bark of dead trees.

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Did You Know?

Unlike most beetles, the bright red color is not a warning of toxicity but may mimic toxic species.