Myrmecia (ant)
Myrmecia | |
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Bull ant queen in Victoria
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Family: | Formicidae |
Subfamily: | Myrmeciinae |
Tribe: | Myrmeciini Emery, 1877 |
Genus: | Myrmecia Fabricius, 1804[1] |
Type species | |
Formica gulosa, now Myrmecia gulosa | |
Diversity[2][3] | |
c. 93 species | |
Occurrences reported to the Atlas of Living Australia as of May 2015 | |
Synonyms | |
Halmamyrmecia Wheeler, 1922 |
Myrmecia is a
Species of this genus are also characterized by their elongated mandibles and large compound eyes that provide excellent vision. They vary in colour and size, ranging from 8 to 40 millimetres (0.31 to 1.57 in). While workers and queens are hard to distinguish from each other due to their similar appearance, males are identifiable by their perceptibly smaller mandibles. Almost all Myrmecia species are monomorphic, with little variation among workers of a given species. Some queens are ergatoid and have no wings, while others have either stubby or completely developed wings. Nests are mostly found in soil, but they can be found in rotten wood and under rocks. One species does not nest in the ground at all; its colonies can only be found in trees.
A queen will mate with one or more males, and during colony foundation she will hunt for food until the brood have fully developed. The life cycle of the ant from egg to adult takes several months. Myrmecia workers exhibit greater longevity in comparison to other ants, and workers are also able to reproduce with male ants. Myrmecia is one of the most primitive group of ants on earth, exhibiting differentiated behaviors from other ants. Workers are solitary hunters and do not lead other workers to food. Adults are
Myrmecia stings are very potent, and the venom from these ants is among the most toxic in the insect world. In Tasmania, 3% of the human population are allergic to the venom of M. pilosula and can suffer life-threatening anaphylactic reactions if stung. People prone to severe allergic reactions can be treated with allergen immunotherapy (desensitisation).
Etymology and common names
The
Ants of this genus are popularly known as bulldog ants, bull ants, or jack jumper ants due to their ferocity and the way they hang off their victims using their mandibles, and also due to the jumping behaviour displayed by some species.[6] Other common names include "inch ants", "sergeant ants", and "soldier ants".[7][8][9] The jack jumper ant and other members of the Myrmecia pilosula species group are commonly known as "black jumpers", "hopper ants", "jumper ants", "jumping ants", "jumping jacks", and "skipper ants".[10][11][12][13][14]
Taxonomy and evolution
Genetic evidence suggests that Myrmecia diverged from related groups about 100 million years ago (Mya). The subfamily Myrmeciinae, to which Myrmecia belongs, is believed to have been found in the
Species groups of the genus Myrmecia |
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Classification
Myrmecia was first established by Danish
In 1911, Emery classified the subgenera Myrmecia, Pristomyrmecia, and Promyrmecia, based on the shape of their mandibles.[a][32] Wheeler established the subgenus Halmamyrmecia, and the ants placed in it were characterized by their jumping behavior.[33] The taxon Wheeler described was not referred to in his later publications,[34] and the genera Halmamyrmecia and Pristomyrmecia were synonymised by John Clark.[35][36] At the same time, Clark reclassified the subgenus Promyrmecia as a full genus. He revised the whole subfamily Myrmeciinae in 1951, recognizing 118 species and subspecies in Myrmecia and Promyrmecia; five species groups were assigned to Myrmecia and eight species groups to Promyrmecia.[34] This revision was rejected by entomologist William Brown due to the lack of morphological evidence that would make the two genera distinct from each other.[37] Due to this, Brown classified Promyrmecia as a synonym of Myrmecia in 1953.[38] Clark's revision was the last major taxonomic study on the genus before 1991, and only a single species was described in the intervening years.[39][40] In 2015, four new Myrmecia ants were described by Robert Taylor, all exclusive to Australia.[3] Currently, 94 species are described in the genus, but as many as 130 species may exist.[41]
Under the present classification, Myrmecia is the only extant genus in the tribe Myrmeciini, subfamily
Genetics
The number of
Species groups
Myrmecia contains a total of nine
Group name | Common name[61] | Example image | Description | Members |
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M. aberrans species group | Wide-jawed bull ants | These medium-to-large ants are distinctive members of the genus. The mandibles and legs are short. They are found in the south-eastern region of Australia, and their colonies are small. Specimens have rarely been collected. | M. aberrans, M. formosa, M. forggatti, M. maura, and M. nobilis[62] | |
M. cephalotes species group | — | These ants are characterised by their bright colours and black heads. Species of this group are medium in size and rare. Colonies dwell inland and they can be found in the eastern and western regions of Australia. | M. callima, M. cephalotes and M. hilli[63] | |
M. gulosa species group | Giant bull ants | Members of this group are large and slender, and have long legs. They are commonly found throughout most of Australia, although they are rarely or never found in the north-western coastal areas and Tasmania[citation needed]; one species has also been introduced to New Zealand. The mandibles vary in shape, and the number of teeth range from three to six. | M. analis, M. arnoldi, M. athertonensis, M. auriventris, M. borealis, M. brevinoda, M. browningi, M. comata, M. desertorum, M. dimidiata, M. erecta, M. esuriens, M. eungellensis, M. fabricii, M. ferruginea, M. flavicoma, M. forceps, M. forficata, M. fulgida, M. fuscipes, M. gratiosa, M. gulosa, M. hirsuta, Myrmecia inquilina, M. midas, M. minuscula, M. mjobergi, M. nigriceps, M. nigriscapa, M. pavida, M. picticeps, M. pulchra, M. pyriformis, M. regularis, M. rowlandi, M. rubripes, M. rufinodis, M. simillima, M. subfasciata, M. tarsata, M. tridentata, and M. vindex[63] | |
M. mandibularis species group | Toothless bull ants | The ants of this group are medium-sized, and can be distinguished from other Myrmecia ants by their oddly shaped mandibles. While their bodies are black, their appendages may vary in colour. They are known to live in the eastern regions of Australia and Tasmania. Colonies have also been found in the south coastal areas and Western Australia.
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M. fulviculis, M. fulvipes, M. gilberti, M. luteiforceps, M. mandibularis, M. piliventris and M. potteri[64] | |
M. nigrocincta species group | — | These ants are medium in size with slender bodies and long legs, confined to the east of Australia. Members of this group look similar to those of the M. gulosa species group. | M. flammicollis, M. nigrocincta, and M. petiolata[65] | |
M. picta species group | — | These ants are small and can be found throughout southern Australia. This species group has only two members, making it the smallest of all the species groups. | M. fucosa and M. picta[66] | |
M. pilosula species group | Jack jumper ants | The majority of these ants are small in size, and colouration varies between species. They are distributed throughout Australia and Tasmania, and one member of this group is endemic to New Caledonia. The species group is known to be heterogeneous. | ||
M. tepperi species group | Buck-toothed bull ants | These ants are small or medium-sized, and have similar characteristics to the M. pilosula group. They are found in the south-western and south-eastern regions of Australia. | M. acuta, M. clarki, M. swalei, M. tepperi, and M. testaceipes[67] | |
M. urens species group | Baby bull ants | Members of this group are all small, and colouration varies widely between species. Most specimens collected to date are from the coastal regions of Australia. | M. dichospila, M. exigua, M. infima, M. nigra, M. loweryi, M. rubicunda, and M. urens[67] |
Description
Myrmecia ants are easily noticeable due to their large mandibles, large compound eyes that provide excellent vision and a powerful sting that they use to kill prey.[68] Each of their eyes contains 3,000 facets, making them the second largest in the ant world.[69] Size varies widely, ranging from 8 to 40 mm (0.31 to 1.57 in) in length.[68][70] The largest Myrmecia species is M. brevinoda, with workers measuring 37 mm (1.5 in); M. brevinoda workers are also the largest in the world.[c][72][73][74] Almost all species are monomorphic, but M. brevinoda is the only known species where polymorphism exists.[6][75] It is well known that two worker subcastes exist, but this does not distinguish them as two different polymorphic forms.[76] This may be due to the lack of food during winter and they could be incipient colonies.[6] The division of labour is based on the size of ant, rather than its age, with the larger workers foraging for food or keeping guard outside the nest, while the smaller workers tend to the brood.[77]
Their colouration is variable; black combined with red and yellow is a common pattern, and many species have golden-coloured pubescence (hair).[78] Many other species are brightly coloured which warns predators to avoid them.[79] The formicine ant Camponotus bendigensis is similar in appearance to M. fulvipes, and data suggest C. bengdigensis is a batesian mimic of M. fulvipes.[80] The number of malpighian tubules differs between castes; in M. dispar, males have 16 tubules, queens range from 23 to 26, and workers have 21 to 29.[81]
Worker ants are usually the same size as each other, although this is not true for some species; worker ants of M. brevinoda, for example, vary in length from 13 to 37 mm (0.51 to 1.46 in).[6] The mandibles of the workers are long with a number of teeth, and the clypeus is short. The antennae consist of 12 segments and the eyes are large and convex. Based on a study on the antennal sensory of M. pyriformis, the antennal sensilla are known to have eight types.[82] Large ocelli are always present.[83]
Queens are usually larger than the workers, but are similar in colour and body shape.[84][83] The head, node, and postpetiole are broader in the queen, and the mandibles are shorter and also broad.[85] Myrmecia queens are unique in that particular species either have fully winged queens, queens with poorly developed wings, or queens without any wings. For example, M. aberrans and M. esuriens queens are ergatoid, meaning that they are wingless.[86] Completely excavated nests showed no evidence of any winged queen residing within them.[87] Some species have queens which are subapterous,[87] meaning they are either wingless or only have rudiments of wings; the queens can be well developed with or without these wing buds.[88] M. nigrocincta and M. tarsata are "brachypterous", where queens have small and rudimentary wings which render the queen flightless.[6][89] Dealated queens with developed wings and thoraces are considered rare. In some species, such as M. brevinoda and M. pilosula, three forms of queens exist, with the dealated queens being the most recognisable.[87]
Males are easy to identify due to their perceptibly broad and smaller mandibles.[84] Their antennae consist of 13 segments, and are almost the same length as the ants' bodies.[21] Ergatandromorph (an ant that exhibits both male and worker characteristics) males are known; in 1985, a male M. gulosa was collected before it hatched from its cocoon, and it had a long but excessively curved left mandible while the other mandible was small. On the right side of its body, it was structurally male, but the left side appeared female. The head was also longer on the female side, its colour was darker, and the legs and prothorax were smaller on the male side.[90] Male genitalia are retracted into a genital cavity that is located in the posterior end of the gaster.[91] The sperm is structurally the same to other animal sperm, forming an oval head with a long tail.[90]
Among the largest
Distribution and habitat
Almost all species in the genus Myrmecia are found in Australia and its coastal islands.[84] M. apicalis is the only species not native to Australia and is only found in the Isle of Pines, New Caledonia.[93][94] Only one ant has ever established nests outside its native range; M. brevinoda was first discovered in New Zealand in 1940[95] and the ant was recorded in Devonport in Auckland in 1948, 1965 and 1981 where a single nest was destroyed.[96] Sources suggest the ant was introduced to New Zealand through human activity; they were found inside a wooden crate brought from Australia.[95] While no eradication attempt was made by the New Zealand government, the ant has not been found in the country since 1981 and is presumed to have been eradicated.[97]
Ants of this genus prefer to inhabit grasslands, forests, heath, urban areas and woodland.[70] Nests are found in Callitris forest, dry marri forest, Eucalyptus woodland and forests, mallee scrub, in paddocks, riparian woodland, and wet and dry sclerophyll forests.[98] They also live in dry sandplains, and coastal plain.[84][99][100] When a queen establishes a new colony, the nest is at first quite simple structurally. The nest gradually expands as the colony grows larger.[101] Nests can be found in debris, decaying tree stumps, rotten logs, rocks, sand, and soil, and under stones.[98][99] While most species nest underground, M. mjobergi is an arboreal nesting species found on epiphytic ferns of the genus Platycerium.[98][102] Two types of nests have been described for this genus: a simple nest with a noticeable shaft inside, and a complex structure surrounded by a mound.[101] Some species construct dome-shaped mounds containing a single entrance, but some nests have numerous holes that are constantly used and can extend several metres underground.[78][70] Sometimes, these mounds can be 0.5 m (20 in) high.[103] Workers decorate these nests with a variety of items, including charcoal, leaves, plant fragments, pebbles, and twigs.[98][99] Some ants use the warmth by decorating their nests with dry materials that heat quickly, providing the nest with solar energy traps.[104][105]
Behaviour and ecology
Foraging
The genus Myrmecia is among the most primitive of all known living ants, and ants of the genus are considered specialist predators.
Most species are diurnal, and forage on the ground or onto low vegetation in search of food, but a few are nocturnal and only forage at night.[98][115] Most Myrmecia ants are active during the warmer months, and are dormant during winter.[116] However, M. pyriformis is a nocturnal species that is active throughout the whole year. M. pyriformis also has a unique foraging schedule;[117] 65% of individuals who went out to forage left the nest in 40–60 minutes, while 60% of workers would return to the nest in the same duration of time at dusk. Foraging workers rely on landmarks for navigation back home.[118] If displaced a short distance, they will scan their surroundings, and then rapidly move in the direction of the nest.[119] M. vindex ants carry dead nest-mates out of their nests and place them on refuse piles, a behaviour known as necrophoresis.[120][121]
Pollination
While pollination by ants is somewhat rare,
Diet
Despite their ferocity, adults are
Myrmecia is one of the very few genera where the workers lay trophic eggs, or infertile eggs laid as food for viable offspring.[133][148] Workers laying trophic eggs have only been reported in two species; these species are M. forceps and M. gulosa.[149] Depending on the species, colonies specialise in trophallaxis; queens and larvae eat eggs that are laid by worker individuals, but the workers do not feed on eggs.[90] Neither adults nor larvae consume food during winter, but cannibalism among larvae is known to occur throughout the year.[133] The larvae only cannibalise each other; this is most likely to happen when no dead insects are available.[150]
Predators, parasites and associations
Myrmecia ants deter many potential predators due to their sting. The
The host association between Myrmecia and
M. hirsuta and
Life cycle
Like other ants, Myrmecia ants begin as an
During the process of founding a colony, as many as four queens cooperate with each other to find a suitable nesting ground, but after the first generation of workers is born, they fight each other until one queen is left alive.[182] However, occasional colonies are known to have as many as six queens coexisting peacefully in the presence of workers.[183] A queen searches for a suitable nest site to establish her colony, and excavates a small chamber in the soil or under logs and rocks, where she takes care of her young.[184] A queen also hunts for prey instead of staying in her nest, a behaviour known as claustral colony founding.[185][186] Although queens do provide sufficient amounts of food to feed their larvae, the first workers are "nanitics" (or minims), smaller than the smallest workers encountered in older developed colonies.[187] Several species do not have any worker caste, and solitary queens will raid a colony, kill the residing queen, and take over the colony.[70] The first generation of workers may take a while to fully develop into adults; for example, M. forficata eggs take around 100 days to fully develop,[188] while other species may take up to eight months.[189]
Queens lay around eight eggs, but less than half of these eggs develop. Some species, such as M. simillima and M. gulosa, lay their eggs singly on the colony floor, while M. pilosula ants may lay eggs in a clump. These clumps have two to 30 eggs each with no larvae present.[90] Certain Myrmecia species do not lay their eggs singly and form clumps of eggs, instead.[190] The larvae are capable of crawling short distances without the assistance of adult workers,[191] and workers will cover the larvae in dirt to help them spin into a cocoon.[110] If cocoons are isolated from a colony, they are capable of shedding their skins before hatching, allowing themselves to advance to full pigmentation.[192] Sometimes, a newborn can emerge from its pupa without the assistance of other ants.[90] Once these ants are born, they are able to identify distinct tasks, a well known primitive trait.[193] Myrmecia lifespans vary in each species, but their longevity is greater than many ant genera:[188] M. nigrocincta and M. pilosula have a lifespan of one year, while M. nigriceps workers can live up to 2.2 years.[194][195] The oldest recorded worker was a M. vindex, living up to 2.6 years.[196] If a colony is deprived of workers, queens are able to revert to colony-founding behaviours until a sustainable workforce emerges. A colony may also emigrate to a new nesting spot altogether.[110][197]
Reproduction
Winged, virgin queens and males, known as alates, appear in colonies during January, before their nuptial flight. Twenty females or fewer are found in a single colony, while males are much more common.[87] The nuptial flight begins at different times for each species; they have been recorded in mid-summer to autumn (January to early April), but there is one case of a nuptial flight occurring from May to July.[182][198][199] Ideal conditions for nuptial flight are hot stormy days with windspeeds of 30 km/h (18 mi/h) and temperatures reaching 30 °C (86 °F), and elevations of 91 metres (300 ft).[90][198] Nuptial flights are rarely recorded due to queens leaving their nest singly, although as many as four queens may leave the nest at the same time.[87] Species are both polygynous and polyandrous, with queens mating with one to ten males.[200] Polygynous and polyandrous societies can occur in a single nest,[201] but particular species are either primarily polygynous or primarily polyandrous. For example, nearly 80% of tested M. pilosula colonies are polygynous[200] while M. pyriformis colonies are mostly polyandrous.[202] Nuptial flight takes place during the morning and can last until late afternoon. When the alates leave the nest, most species launch themselves into the air from trees and shrubs, although others launch themselves off the ground.[203] Queens discharge a glandular secretion from the tergal gland, which males are strongly attracted to.[204] As many as 1,000 alates will gather to mate. A queen was once found to have five or six males attempting to copulate with her.[90] The queen is unable to bear the weight of the large number of males trying to mate with her, and will drop to the ground, with the ants dispersing later on.[198] M. pulchra queens are ergatoid and cannot fly; the males meet the queen out in an open area away from the nest and mate, and these queens do not return to their nest after mating.[203]
Both independent and dependent colony foundation can occur after mating. Isolation by distance (IBD) patterns have been recorded with M. pilosula queens, where nests that tend to be closer together were more genetically related to each other in comparison to other nests further away. Independent colony foundation is closely associated with queens which engage in nuptial flight in areas far from their home colony, showing that dependent colony foundation mostly occurs if they mate near their nest. In some cases, queens could seek adoption into alien colonies if there are no suitable areas to find a nest or independent colony foundation cannot be carried out. Other queens could try to return to their home nest after nuptial flight, but they may end up in another nest near the nest they originally came from.[200] In multiple-queen societies, the egg-laying queens are generally unrelated to one another,[205][206] but one study showed that it is possible for multiple queens in the same colony to be genetically related to each other.[207] Depending on the species, the number of individuals present in a colony can range from 50 to over 2,200 individuals.[101] A colony with less than 100 workers is not considered a mature colony.[208] M. dispar colonies have around 15 to 329 ants, M. nigrocincta have over 1,000, M. pyriformis have from 200 to over 1,400 and M. gulosa have nearly 1,600.[209][210] A colony can last for a number of years. Foraging behaviour among smaller workers which never usually leave the nest can be a sign of a colony's impending demise.[142]
Workers are known to produce their own eggs, but these eggs are unfertilised and hatch into male ants.
Vision
While most ants have poor eyesight, Myrmecia ants have excellent vision.[70] This trait is important to them, since Myrmecia primarily relies on visual cues for navigation.[217] These ants are capable of discriminating the distance and size of objects moving nearly a metre away.[218] Winged alates are only active during the day, as they can see better.[219] Members of a colony have different eye structures due to each individual fulfilling different tasks,[219] and nocturnal species have larger ommatidia in comparison to those that are active during the day.[220] Facet lenses also vary in size; for example, the diurnal species M. croslandi has a smaller lens in comparison to M. nigriceps and M. pyriformis which have larger lenses.[221][222] Myrmecia ants have three photoreceptors that can see UV light, meaning they are capable of seeing colours that humans cannot.[223] Their vision is said to be better than some mammals, such as cats, dogs or wallabies.[224] Despite their excellent vision, worker ants of this genus find it difficult to find their nests at night, due to the difficulty of finding the landmarks they use to navigate. They are thus more likely to return to their nests the following morning, walking slowly with long pauses.[225]
Sting
Myrmecia workers and queens possess a sting described as "sharp in pain with no burning." The pain may last for several minutes.
Interaction with humans
Myrmecia is one of the best-known genera of ants.
Fatalities associated with Myrmecia stings are well known, and have been attested to by multiple sources.[243] In 1931 two adults and an infant girl from New South Wales died from ant stings, possibly from M. pilosula or M. pyriformis.[244] Another fatality was reported in 1963 in Tasmania.[245] Between 1980 and 2000, there were six recorded deaths, five in Tasmania and one in New South Wales.[246] Four of these deaths were due to M. pilosula, while the remaining two died from a M. pyriformis sting. Half of the victims had known ant-sting allergies, but only one of the victims was carrying adrenaline before being stung.[247] Most victims died within 20 minutes of being stung, but one of the victims died in just five minutes from a M. pyriformis sting.[246] No death has been officially recorded since 2003,[248] but M. pilosula may have been responsible for the death of a man from Bunbury in 2011.[249] Prior to the establishment of a desensitisation program, Myrmecia stings caused one fatality every four years.[250]
Venom
Each Myrmecia species has different venom components, so people who are allergic to ants are advised to stay away from Myrmecia, especially from species they have never encountered before.
Sting treatment
The nature of treatment for a Myrmecia sting depends on the severity of stingose, and the use of antihistamine tablets are other methods to reduce the pain.[263][264] Indigenous Australians use bush remedies to treat Myrmecia stings, such as rubbing the tips of bracken ferns onto the stung area.[265] Carpobrotus glaucescens is also used to treat stung areas, using juices that are squeezed and rubbed onto the area, which quickly relieves the pain from the sting.[266]
Emergency treatment is only needed if a person is showing signs of a severe allergic reaction. Prior to calling for help, stung persons should be laid down, and their legs elevated.
Before venom immunotherapy, whole-body extract immunotherapy was widely used due to its apparent effectiveness, and it was the only immunotherapy used for ant stings.[272][273] However, fatal failures were reported, and this led to scientists to research for alternative methods of desensitisation.[274] Before 1986 allergic reactions were not recorded and there was no study on Myrmecia sting venom; whole body extracts were later used on patients during the 1990s, but this was found to be ineffective and was subsequently withdrawn.[275][276] In 2003, ant venom immunotherapy was shown to be safe and effective against Myrmecia venom.[273]
Prevention
Myrmecia ants are frequently encountered by humans, and avoiding them is difficult. Wearing closed footwear such as boots and shoes can reduce the risk of getting stung; these ants are capable of stinging through fabric, however.[277] A risk of being stung while gardening also exists; most stings occur when someone is gardening and is unaware of the ants' presence.[104] Eliminating nearby nests or moving to areas with low Myrmecia populations significantly decreases the chances of getting stung.[276]
Human uses
Due to their large mandibles, Myrmecia ants have been used as surgical sutures to close wounds.[278]
Cultural representations
The ant is featured on a postage stamp and on an uncirculated coin which are part of the Things That Sting issue by Australia Post,[279][280] and M. gulosa is the emblem for the Australian Entomological Society.[44] Myrmecia famously appears in the philosopher Arthur Schopenhauer's major work, The World as Will and Representation, as a paradigmatic example of strife and constant destruction endemic to the "will to live".[281]
But the bulldog-ant of Australia affords us the most extraordinary example of this kind; for if it is cut in two, a battle begins between the head and the tail. The head seizes the tail in its teeth, and the tail defends itself bravely by stinging the head: the battle may last for half an hour, until they die or are dragged away by other ants. This contest takes place every time the experiment is tried."[281]
Notable Australian poet Diane Fahey wrote a poem about Myrmecia, which is based on Schopenhauer's description,[282] and a music piece written by German composer Karola Obermüller was named after the ant.[283]
See also
- Ant
- Bullet ant
- Fire ant
- List of ants of Australia
Notes
- ^ Emery did not reclassify the actual genus itself as a subgenus. Instead, he named a subgenus after it.
- ^ Despite M. maxima lacking a specimen, the description Moore provided undoubtedly describes a large Myrmecia species. He describes it as being "nearly an inch and a half long, having very sharp mandibles and a formidable sting, which produces very acute pain."
- ^ This does not include the measurements of queens of both M. brevinoda and other ants. Queens of other species are larger than these workers, with some measuring 52 mm (2.0 in).[71]
- ^ Most likely observed in captive colonies, as F. provancheri is not native to Australia and is only found in Canada and the United States.
References
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Cited texts
- Capinera, John L. (2008). Encyclopedia of Entomology (2nd ed.). Dordrecht: Springer. ISBN 978-1-4020-6242-1.
- Clark, John (1951). The Formicidae of Australia (Volume 1). Subfamily Myrmeciinae (PDF). Melbourne: Commonwealth Scientific and Industrial Research Organisation, Australia.
- Gokhman, Vladimir E. (2009). Karyotypes of Parasitic Hymenoptera (1st ed.). Dordrecht, Netherlands: Springer Science & Business Media. ISBN 978-1-4020-9807-9.
- Hölldobler, Bert; Wilson, Edward O. (1990). ISBN 978-0-674-04075-5.
- Ogata, Kazuo (1991). "Ants of the genus Myrmecia Fabricius: a review of the species groups and their phylogenetic relationships (Hymenoptera: Formicidae: Myrmeciinae)". Systematic Entomology. 16 (3): 353–381. S2CID 84453095.
- Schmid-Hempel, Paul (1998). Parasites in social insects. New Jersey: Princeton University Press. ISBN 978-0-691-05924-2.
- Trager, James C. (1988). Advances in myrmecology (1st ed.). Leiden, Netherlands: E.J. Brill. ISBN 978-0-916846-38-1.
- Wheeler, William M. (1933). Colony-founding among ants, with an account of some primitive Australian species (PDF). Cambridge, Massachusetts: Harvard University Press. OCLC 1411297.
- Wilson, Edward O. (2000). OCLC 42289674.
External links
- Myrmecia at the AntWiki – Bringing Ants to the World
- Myrmecia in the Catalogue of Life
- Video about Bull ants – YouTube
- JJA Desensitisation Program website