Myrmecia is a genus of ants first established by Danish zoologist Johan Christian Fabricius in 1804. The genus is a member of the subfamily Myrmeciinae of the family Formicidae. Myrmecia is a large genus of ants, comprising at least 93 species that are found throughout Australia and its coastal islands, while a single species is only known from New Caledonia. One species has been introduced out of its natural distribution and was found in New Zealand in 1940, but the ant was last seen in 1981. These ants are commonly known as bull ants, bulldog ants or jack jumper ants, and are also associated with many other common names. They are characterized by their extreme aggressiveness, ferocity, and painful stings. Some species are known for the jumping behavior they exhibit when agitated.
The jack jumper ant, also known as the jack jumper, jumping jack, hopper ant, or jumper ant, is a species of venomous ant native to Australia. Most frequently found in Tasmania and southeast mainland Australia, it is a member of the genus Myrmecia, subfamily Myrmeciinae, and was formally described and named by British entomologist Frederick Smith in 1858. This species is known for its ability to jump long distances. These ants are large; workers and males are about the same size: 12 to 14 mm for workers, and 11 to 12 mm for males. The queen measures roughly 14 to 16 mm long and is similar in appearance to workers, whereas males are identifiable by their perceptibly smaller mandibles.
Nothomyrmecia, also known as the dinosaur ant or dawn ant, is an extremely rare genus of ants consisting of a single species, Nothomyrmecia macrops. These ants live in South Australia, nesting in old-growth mallee woodland and Eucalyptus woodland. The full distribution of Nothomyrmecia has never been assessed, and it is unknown how widespread the species truly is; its potential range may be wider if it does favour old-growth mallee woodland. Possible threats to its survival include habitat destruction and climate change. Nothomyrmecia is most active when it is cold because workers encounter fewer competitors and predators such as Camponotus and Iridomyrmex, and it also increases hunting success. Thus, the increase of temperature may prevent them from foraging and very few areas would be suitable for the ant to live in. As a result, the IUCN lists the ant as Critically Endangered.
Myrmecia croslandi is a species of bull ant which is endemic to Australia. Myrmecia croslandi is a jumping type of bull ant, which means it could be called a jack jumper. Myrmecia croslandi are located around Australia. They can be seen throughout New South Wales and Queensland. Myrmecia croslandi was described by Taylor in 1991.
Myrmecia pavida is a bull ant species that lives in and is native to Australia. Described by John S. Clark in 1951, the Myrmecia Pavida is distributed and has been mainly collected from the states of Western Australia and South Australia.
Myrmecia pyriformis, also known as the bull ant or inch ant, is an Australian ant. Myrmecia pyriformis belongs to the genus Myrmecia. It is abundant in many major cities of Australia, but mostly spotted in the eastern states. The species is of a similar appearance to the Myrmecia forficata.
Myrmecia loweryi is a species of the giant bull ant which is abundant to Australia. Myrmecia loweryi is one of the latest species of bull ant to be described, which was back in 1991 by Ogata & Taylor. They are mostly located around New South Wales and the Australian Capital Territory.
Myrmecia nigrocincta, commonly known as the jumper ant or jumping jack, is an ant of the genus Myrmecia. The species was first described by Frederick Smith in 1858. Colonies of this ant are abundant in eastern Australia. Ants of this species are known for their ability to jump up to 10 centimetres, and they also have a powerful, venomous sting. Rather than foraging on the ground, M. nigrocincta prefer to forage in trees where they are known to pollinate certain flowers.
Myrmecia browningi is an Australian bull ant species, a part of the genus Myrmecia. They are endemic to Australia and have primarily only been seen in South Australia.
Myrmecia gilberti is an Australian ant which belongs to the genus Myrmecia. This species is native to Australia. This species is distributed throughout all of the eastern states and regions of Australia.
Myrmecia minuscula is an Australian ant which belongs to the genus Myrmecia. This species is native to Australia. They are distributed in the state of Queensland. They were described by Forel in 1915.
Myrmecia testaceipes is an Australian ant which belongs to the genus Myrmecia. This species is native to Australia. The distribution of Myrmecia testaceipes is throughout all of the southern states of Australia. It was described as a species by John S. Clark in 1943.
Myrmecia regularis is a species of ant endemic to Australia. A member of the genus Myrmecia in the subfamily Myrmeciinae, it was first described by American entomologist Walter Cecil Crawley in 1925. These ants are medium to large in size, measuring 10 to 20 millimetres, and they are bright brownish-red in colour. Queens and workers share similar morphological features, but they can be distinguished by the noticeable size difference. Males also look similar, but collected specimens are too damaged to be examined properly.
Myrmecia erecta is an Australian bull ant species, a part of the genus Myrmecia. They are endemic to Australia. They are mainly distributed in South Australia and the surrounding areas of the state.
Myrmecia tridentata is an Australian ant which belongs to the genus Myrmecia. It is native to Australia. They have been usually spotted in South Australia, Victoria, and Queensland. It was described by Kazuo Ogata and Robert Taylor in 1991.
Myrmecia maxima is an unidentifiable species of ant endemic to Australia. A member of the genus Myrmecia in the subfamily Myrmeciinae, M. maxima was first described by George Fletcher Moore in 1842. As no type specimen is available, M. maxima cannot be confidently identified, but the only description Moore had provided undoubtedly describes a large Myrmecia species, having long, sharp mandibles and a formidable sting. It is still classified as a valid species. The ant resides in the south-west regions of Western Australia. As other Myrmecia species have been identified in these regions, M. maxima is possibly a senior synonym of one of these ants. Its former name is recognised as an invalid name after it was suppressed under plenary powers in 1976.
Myrmecia haskinsorum is a species of ant in the genus Myrmecia. Described by Robert Taylor in 2015, the species is endemic to Australia where it is known from areas that have high elevations, although some records show the ant lives in low elevated areas in Tasmania
Myrmecia impaternata is a species of gynogenetic, female-only ant in the genus Myrmecia. Described by Robert Taylor in 2015, the species is endemic to Australia and is common in Canberra and around Armidale. Observations of the species have been confirmed in Queensland.
