Thistledown Velvet Ant vs Common Mormon

Side-by-side species comparison

Attribute Thistledown Velvet Ant Common Mormon
Scientific Name Dasymutilla gloriosa Papilio polytes
Order Hymenoptera Lepidoptera
Family Mutillidae Papilionidae
Size 12-20 mm 90-100 mm wingspan
Habitat Deserts & Drylands Heathland
Diet Nectar Feeders Nectar Feeders
Regions Southwestern United States from California to Texas South Asia, Southeast Asia
Conservation Least Concern Least Concern

Thistledown Velvet Ant

A strikingly beautiful velvet ant covered in long white hair that resembles a piece of thistledown blowing across desert sand. The wingless females are a remarkable mimic of windblown plant material.

💡

Did You Know?

Its white fluffy appearance camouflages it among the creosote seed pods and dried plant debris of its desert habitat.

Common Mormon

Males are plain black with a cream band; females occur in multiple forms mimicking different toxic species. A textbook example of female-limited polymorphism.

💡

Did You Know?

A single gene called doublesex controls the switch between its mimetic female forms.