Thistledown Velvet Ant vs Larch Sawfly

Side-by-side species comparison

Attribute Thistledown Velvet Ant Larch Sawfly
Scientific Name Dasymutilla gloriosa Pristiphora erichsonii
Order Hymenoptera Hymenoptera
Family Mutillidae Tenthredinidae
Size 12-20 mm 8-12 mm (adult)
Habitat Deserts & Drylands Forests
Diet Nectar Feeders Omnivores
Regions Southwestern United States from California to Texas North America, Europe
Conservation Least Concern Not Evaluated

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.

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Did You Know?

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

Larch Sawfly

The most important defoliator of larch in North America. Periodic outbreaks can last for years and cause significant growth reduction.

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Did You Know?

Indigenous peoples used outbreaks as a calendar marker, as they occurred with notable regularity.