Yellow-Legged Horntail vs Velvet Ant

Side-by-side species comparison

Attribute Yellow-Legged Horntail Velvet Ant
Scientific Name Urocerus augur Dasymutilla occidentalis
Order Hymenoptera Hymenoptera
Family Siricidae Mutillidae
Size 20-30 mm 15-25 mm
Habitat Forests Deserts & Drylands
Diet Wood Feeders Nectar Feeders
Regions East Asia, Japan North America
Conservation Least Concern Least Concern

Yellow-Legged Horntail

A large, dark-bodied wood wasp with bright yellow legs that contrast sharply with its blue-black body. Found primarily in conifer forests of eastern Asia.

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Did You Know?

Like all horntails, the short horn-like projection at the tail is not a stinger but a structural feature called a cornus, present in both sexes.

Velvet Ant

Not actually an ant but a wasp. Females are wingless and covered in dense, colorful hair. Known as "cow killers" for their extremely painful sting. Parasitize ground-nesting bees.

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Did You Know?

Velvet ants have been called the most indestructible insects — their exoskeleton is so tough that entomological pins bend when trying to pierce them.