Cobalt Milkweed Beetle vs Jamaican Click Beetle

Side-by-side species comparison

Attribute Cobalt Milkweed Beetle Jamaican Click Beetle
Scientific Name Chrysochus cobaltinus auratus Pyrophorus noctilucus
Order Coleoptera Coleoptera
Family Chrysomelidae Elateridae
Size 8-11mm 25-40 mm
Habitat Meadows Farmland
Diet Herbivores Root Feeders
Regions North America Central America, South America
Conservation Least Concern Least Concern

Cobalt Milkweed Beetle

A subspecies of the cobalt blue milkweed beetle with slightly more golden-green coloring.

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Did You Know?

The metallic blue and green coloring warns predators that it has sequestered toxic compounds from milkweed.

Jamaican Click Beetle

The brightest bioluminescent insect known. Indigenous peoples used them as temporary lanterns by placing several in a jar. Two light organs on the thorax glow intense green.

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Did You Know?

This click beetle is so bright that indigenous Caribbean people used them as living lanterns — a few beetles in a perforated gourd could light a room or mark a path.