Black-Headed Ash Sawfly vs Lesser Leaf-Cutter Ant

Side-by-side species comparison

Attribute Black-Headed Ash Sawfly Lesser Leaf-Cutter Ant
Scientific Name Tethida barda Acromyrmex octospinosus
Order Hymenoptera Hymenoptera
Family Tenthredinidae Formicidae
Size 6-8 mm 2-10 mm
Habitat Forests Farmland
Diet Herbivores Fungus Feeders
Regions Eastern North America Central America, Caribbean, northern South America, Brazil
Conservation Least Concern Least Concern

Black-Headed Ash Sawfly

A small sawfly whose larvae have distinctive black heads and whitish-green bodies. They feed on the underside of ash leaflets, skeletonizing them.

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Did You Know?

This species is often mistaken for moth caterpillars, but like all sawfly larvae, it has more than five pairs of prolegs on its abdomen.

Lesser Leaf-Cutter Ant

A smaller leaf-cutter ant species covered in spiny tubercles on its body. It forms more modest colonies than Atta but is equally dependent on fungal agriculture.

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Did You Know?

Workers produce antibiotic compounds from bacteria on their bodies to protect their fungal gardens from parasitic molds.