Swollen-thorn Acacia Ant vs Spine-waisted Ant

Side-by-side species comparison

Attribute Swollen-thorn Acacia Ant Spine-waisted Ant
Scientific Name Pseudomyrmex peperi Aphaenogaster tennesseensis
Order Hymenoptera Hymenoptera
Family Formicidae Formicidae
Size 3-5 mm 4-5 mm
Habitat Forests Woodlands
Diet Nectar Feeders Seed Feeders
Regions Mexico, Central America Eastern North America
Conservation Least Concern Least Concern

Swollen-thorn Acacia Ant

An obligate acacia-ant mutualist that nests exclusively within the hollow thorns of Vachellia trees. Workers patrol the tree constantly, stinging any animal that contacts it.

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Did You Know?

Acacia trees with these ant colonies grow significantly faster than uncolonized trees due to the ant's protection services.

Spine-waisted Ant

A slender reddish-brown ant common in eastern North American deciduous forests. It is an important seed disperser, carrying seeds with nutritious elaiosomes back to its nest.

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Did You Know?

They are responsible for dispersing seeds of many spring wildflowers including trilliums, violets, and bloodroot.