Desert Spider Beetle vs Giant Prickly Stick Insect

Side-by-side species comparison

Attribute	Desert Spider Beetle	Giant Prickly Stick Insect
Scientific Name	Cysteodemus armatus	Extatosoma tiaratum
Order	Coleoptera	Phasmatodea
Family	Meloidae	Phasmatidae
Size	10-16 mm	100-150 mm (females)
Habitat	Deserts & Drylands	Woodlands
Diet	Herbivores	Herbivores
Regions	North America	Oceania
Conservation	Least Concern	Least Concern

Desert Spider Beetle

A bizarre inflated blister beetle with a bulbous, metallic blue-black abdomen. It waddles slowly through the Mojave and Sonoran deserts.

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Did You Know?

Its balloon-like body shape mimics a spider, which may deter some predators.

Giant Prickly Stick Insect

Large Australian stick insect with lobed legs resembling leaves. Females drop eggs that mimic seeds — ants carry them underground to their nests where they safely develop.

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Did You Know?

Giant prickly stick insect eggs have a knob that mimics a seed nutrient body — ants carry the eggs to their underground nests, unwittingly protecting them from predators.