Western Iron Dun vs Longhorn Crazy Ant

Side-by-side species comparison

Attribute Western Iron Dun Longhorn Crazy Ant
Scientific Name Epeorus longimanus Paratrechina longicornis
Order Ephemeroptera Hymenoptera
Family Heptageniidae Formicidae
Size 10-14 mm 2.5-3 mm
Habitat Rivers & Streams Underground
Diet Omnivores Omnivores
Regions North America Pantropical, Global in heated buildings
Conservation Least Concern Least Concern

Western Iron Dun

An iconic eastern mayfly that signals the start of spring fly-fishing season. Nymphs have only two tails and cling to rocks in fast current.

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Did You Know?

It was named after Theodore Gordon, considered the father of American dry-fly fishing.

Longhorn Crazy Ant

A small dark brown ant with extremely long antennae and legs that moves in rapid, jerky patterns. It is one of the most widely distributed tramp ant species in the world.

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Did You Know?

Its original native range is unknown because it has been spread by human commerce for so long.