Blue Milkweed Beetle vs Hubricht's Cave Beetle

Side-by-side species comparison

Attribute Blue Milkweed Beetle Hubricht's Cave Beetle
Scientific Name Chrysochus cobaltinus Pseudanophthalmus hubrichti
Order Coleoptera Coleoptera
Family Chrysomelidae Carabidae
Size 8-12 mm 4-5 mm
Habitat Grasslands Caves
Diet Herbivores Omnivores
Regions North America United States
Conservation Least Concern Endangered

Blue Milkweed Beetle

A stunningly beautiful beetle with a deep cobalt blue metallic sheen across its rounded body. It feeds on milkweed and dogbane plants, sequestering toxic cardenolides for defense.

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Did You Know?

This beetle sequesters heart-stopping toxins from milkweed plants in its blood, making it poisonous to any predator that eats it.

Hubricht's Cave Beetle

A small eyeless cave beetle endemic to caves in West Virginia. It belongs to the most species-rich genus of cave beetles in North America.

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Did You Know?

The genus Pseudanophthalmus contains over 150 described species, all restricted to caves.