Mud Dauber Wasp vs Velvet Ant

Side-by-side species comparison

Attribute Mud Dauber Wasp Velvet Ant
Scientific Name Sceliphron caementarium Dasymutilla occidentalis
Order Hymenoptera Hymenoptera
Family Sphecidae Mutillidae
Size 24-28 mm 15-25 mm
Habitat Underground Deserts & Drylands
Diet Nectar Feeders Nectar Feeders
Regions North America, introduced to Europe and other continents North America
Conservation Not Evaluated Least Concern

Mud Dauber Wasp

A slender black and yellow solitary wasp that builds tubular mud nests on walls and structures. It stocks each cell with paralyzed spiders as food for its developing larvae.

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Did You Know?

A single mud nest cell can contain up to 25 paralyzed spiders stacked inside.

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.