Large Oak Cynipid vs Thistledown Velvet Ant

Side-by-side species comparison

Attribute Large Oak Cynipid Thistledown Velvet Ant
Scientific Name Cynips quercusfolii Dasymutilla gloriosa
Order Hymenoptera Hymenoptera
Family Cynipidae Mutillidae
Size 2.5–4 mm 12-20 mm
Habitat Woodlands Deserts & Drylands
Diet Herbivores Nectar Feeders
Regions Europe Southwestern United States from California to Texas
Conservation Not Evaluated Least Concern

Large Oak Cynipid

A gall wasp that induces cherry-sized galls on the undersides of oak leaves. The galls turn from green to red as they mature in autumn.

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Did You Know?

The colorful galls were historically known as 'oak cherries' and were sometimes mistaken for real fruit by children.

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.