Summary description from Wikipedia:

Images from inaturalist.org observations:

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©Sebastian Sendoya, some rights reserved (CC-BY-NC)

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©Leonel Roget, some rights reserved (CC-BY)

©Pablo Bombín, some rights reserved (CC0)

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©Eduardo Nadal, some rights reserved (CC-BY-NC)

©Eduardo Luis Beltrocco, some rights reserved (CC-BY-NC)

©Eduardo Luis Beltrocco, some rights reserved (CC-BY-NC)

©Eduardo Luis Beltrocco, some rights reserved (CC-BY-NC)

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©Gustavo Fernando Durán, some rights reserved (CC-BY-NC-SA)

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Parent Taxon

• Acromyrmex

Sibling Taxa

• Acromyrmex ambiguus
• Acromyrmex aspersus
• Acromyrmex balzani
• Acromyrmex coronatus
• Acromyrmex crassispinus
• Acromyrmex fracticornis
• Acromyrmex heyeri
• Acromyrmex landolti
• Acromyrmex laticeps
• Acromyrmex lobicornis
• Acromyrmex lundii
• Acromyrmex octospinosus
• Acromyrmex rugosus
• Acromyrmex santschii
• Acromyrmex subterraneus
• Acromyrmex versicolor

Child Taxa

• Acromyrmex lundii boliviensis
• Acromyrmex lundii carli
• Acromyrmex lundii decolor
• Acromyrmex lundii lundii
• Acromyrmex lundii parallelus
• Acromyrmex lundii pubescens

Top Observation Places

• Santa Fe
• Buenos Aires
• Balvanera
• Belgrano
• Colegiales