Tawny-legged Jack Jumper Ant

Myrmecia fulvipes · Order: Hymenoptera · Family: Formicidae

Can sting. Their sting is relatively mild.

Source: Wikipedia

Tawny-legged Jack Jumper Ant
Photo: Zach Lieberman, CC BY

Workers measure about 9-13 mm and queens 14-16 mm long. They have black jaws and body, orange legs, and a golden abdomen.

Source: Wikipedia

How to recognize it

Their jaws and most of the body are black, the legs are orange, and the abdomen is golden.

Source: Wikipedia

Size

Workers are 9-13 mm long; queens are larger at 14-16 mm.

Source: Wikipedia

Does it bite or sting?

Their sting is relatively mild.

Source: Wikipedia

What it eats

They feed larvae insects and collect honey-water as food.

Source: Wikipedia

Life cycle

Myrmecia fulvipes belongs to the bull-ant genus Myrmecia.

Source: Wikipedia

Lookalikes

They look similar to the jack jumper ant.

Source: Wikipedia

More photos

Questions people ask

Do they sting?

Yes, they can sting but the sting is relatively mild.

Source: Wikipedia

How big are they?

Workers are 9-13 mm long and queens are 14-16 mm long.

Source: Wikipedia

What do they eat?

They feed their larvae insects and collect honey-water.

Source: Wikipedia

Same family (Formicidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Myrmecia_fulvipes

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.