Rusty Patched Bumble Bee vs Amazonian Fungus-Growing Ant

Side-by-side species comparison

Attribute Rusty Patched Bumble Bee Amazonian Fungus-Growing Ant
Scientific Name Bombus affinis Atta laevigata
Order Hymenoptera Hymenoptera
Family Apidae Formicidae
Size 13-20 mm 2-15 mm (caste dependent)
Habitat Underground Caves
Diet Nectar Feeders Fungus Feeders
Regions Upper Midwest and northeastern United States, now extremely restricted Brazil, Venezuela, Colombia, Guyana
Conservation Critically Endangered Least Concern

Rusty Patched Bumble Bee

A once-common bumble bee named for the rust-colored patch on the second abdominal segment of workers. It was the first bumble bee in the continental United States listed as endangered.

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Did You Know?

Its range has shrunk by nearly 87 percent since the 1990s, making it one of the rarest bees in North America.

Amazonian Fungus-Growing Ant

One of the largest leaf-cutter ant species with smooth, shiny-headed major workers. Its subterranean colonies can span 30 meters and house millions of workers.

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Did You Know?

A single mature colony excavates over 40 tons of soil, creating underground chambers that improve soil aeration and drainage.