Map Snapshot
9 Records
Status
"Cosmopolitan, but particularly diverse in the tropics; in the New World, n. US to Argentina. ... This is probably the largest genus of ants in the world, possibly rivaled only by Camponotus, both with an unknown number, but easily over 1000 species. They have pronounced worker caste dimorphism, especially in seed harvesting species; major workers are larger than minors and have disproportionately large heads. A few species have an even larger supermajor caste, and are thus trimorphic. Scavenger predators are usually less strongly dimorphic, and longer legged than the seed harvesters" (BugGuide).
Seasonality Snapshot
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A Big-headed Ant in Baltimore Co., Maryland (7/21/2018). Determined by Brenden E. Boudinot/BugGuide.
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Media by
Emily Stanley.
A male Big-headed Ant in Cecil Co., Maryland (7/6/2016). Determined by James C. Trager/BugGuide.
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Media by
Shannon Schade.
Big-headed Ant in Dorchester Co., Maryland (9/7/2018). (c) Timothy Reichard, all rights reserved.
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Media by
Timothy Reichard.
Big-headed Ant in Dorchester Co., Maryland (9/7/2018). (c) Timothy Reichard, all rights reserved.
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Media by
Timothy Reichard.
Big-headed Ant in Somerset Co., Maryland (7/22/2022). (c) Jim Brighton, some rights reserved (CC BY-NC).
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Media by
Jim Brighton.
Big-headed Ant in Worcester Co., Maryland (8/6/2022). (c) Jim Brighton, some rights reserved (CC BY-NC).
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Media by
Jim Brighton.
Big-headed Ant in Somerset Co., Maryland (7/22/2022). (c) Jim Brighton, some rights reserved (CC BY-NC).
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Media by
Jim Brighton.