Australian Red Bull Ant
Myrmecia simillima · Order: Hymenoptera · Family: Formicidae
Also called: Giant Bull Ant
Workers measure about 19-23 mm, while queens are slightly larger at 22-24 mm. They are brown-headed with a black gaster, reddish mandibles and legs, and yellowish-red tarsi and funiculus. The species lives along the coast and inland in New South Wales and Victoria and is native to Australia.
Source: Wikipedia
How to recognize it
The head, thorax, node and other parts are brown; the gaster is black; mandibles, legs and other parts are reddish; the tarsi and funiculus are yellowish-red.
Source: Wikipedia
Size
Worker ants are on average 19-23 mm long. Queens are larger, ranging from 22-24 mm in length.
Source: Wikipedia
Where it comes from
This ant species is native to Australia.
Source: Wikipedia
More photos


Same family (Formicidae)
Eastern Black Carpenter AntCamponotus pennsylvanicusCan damage your home
Red Imported Fire AntSolenopsis invictaCan sting
American Winter AntPrenolepis imparis
Argentine AntLinepithema humileNuisance, not dangerous
Immigrant Pavement AntTetramorium immigransCan sting
Odorous House AntTapinoma sessileCan damage your homeSources
- Wikipedia: https://en.wikipedia.org/wiki/Myrmecia_simillima
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 2026-10-22.