Doorkeeper Ant vs Black Leafcutter Ant

Side-by-side species comparison

Attribute Doorkeeper Ant Black Leafcutter Ant
Scientific Name Colobopsis truncata Acromyrmex lobicornis
Order Hymenoptera Hymenoptera
Family Formicidae Formicidae
Size 3-6 mm 3-9 mm
Habitat Woodlands Heathland
Diet Gall Makers Herbivores
Regions Southern and Central Europe Argentina, Brazil, Paraguay, Uruguay
Conservation Least Concern Least Concern

Doorkeeper Ant

A European carpenter ant in which soldiers have uniquely flattened, plug-shaped heads used to block nest entrances in plant stems. Workers are bicolored yellow and dark brown. They nest in hollow twigs and galls of various trees.

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Did You Know?

Soldier ants literally use their flattened heads as living doors, opening the nest entrance only when nestmates present the correct chemical password.

Black Leafcutter Ant

A cold-tolerant leafcutter ant that builds conspicuous mound nests from vegetation debris. Workers are dark brown to black with prominent thoracic spines. This species can survive in temperate climates unusual for leafcutters.

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Did You Know?

They are the most cold-tolerant leafcutter ants, surviving in regions where winter temperatures drop below freezing.