The yellow-footed ant is a tiny East Asian ant, about 0.08–0.1 in (2–2.5 mm) long, that has spread widely across the eastern United States. It was first found in the U.S. in a Philadelphia park in 1939 but went unrecognized for decades.

Appearance

Appearance
Workers are about 0.08–0.1 in (2–2.5 mm) long, usually with an amber-yellow and a darker head and abdomen, though color varies.

Look-alikes

Woodland crazy antNylanderia faisonensis

The two are very hard to tell apart in ordinary photos; a magnified close-up is needed. Location helps: the yellow-footed ant dominates north of Washington, DC, while the woodland crazy ant still dominates farther south.

Why they get mixed upA native relative of similar size that nests in the same kinds of places.

Where it lives

Typical habitats
  • Parks
  • Woodlands
  • Leaf litter
  • Rotting wood
Range
Native to Japan, Korea, and China. In the eastern U.S. it is recorded from South Carolina north to Massachusetts, and it was first found in Ohio in 2005.
Preferred conditions
Nests in leaf litter, under stones, and in rotting wood.

Life cycle

Reproduction
Winged queens and males do not swarm out all at once; they leave the nest a few at a time and mate on the ground.

Conservation

IUCN Red List
NENot EvaluatedNot yet assessed

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Yellow-footed Ant (Nylanderia flavipes) — identification, habitat & look-alikes | Moeyo