Small Square-Gilled Mayfly vs Slave-Maker Ant

Side-by-side species comparison

Attribute Small Square-Gilled Mayfly Slave-Maker Ant
Scientific Name Caenis luctuosa Temnothorax americanus
Order Ephemeroptera Hymenoptera
Family Caenidae Formicidae
Size 3-6 mm 2-3 mm
Habitat Ponds & Lakes Farmland
Diet Omnivores Omnivores
Regions Europe Eastern North America
Conservation Least Concern Least Concern

Small Square-Gilled Mayfly

A minute mayfly with distinctive square-shaped gills on its nymphs. Adults swarm in enormous numbers near water at twilight.

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Did You Know?

The enlarged second gill plate acts as a protective cover over the remaining delicate gills.

Slave-Maker Ant

A tiny North American slave-making ant that raids colonies of closely related Temnothorax species. Workers have saber-like mandibles used in raids. Enslaved workers eventually perform all domestic tasks while raiders focus solely on conducting new raids.

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Did You Know?

Enslaved Temnothorax workers sometimes rebel by destroying the slave-maker brood they are supposed to rear, reducing the raiding colony's future workforce.