| Monomorium bidentatum | |
|---|---|
 | |
| Monomorium bidentatum worker | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Genus: | Monomorium |
| Species: | M. bidentatum |
| Binomial name | |
| Monomorium bidentatum Mayr, 1887 | |
| Synonyms | |
| |
Monomorium bidentatum is a species of ant in the subfamily Myrmicinae. It is endemic to two South American countries, Chile and Argentina.
Workers are around 3.5 millimetres (0.14 in) long. The general color is dark brown, with the mandibles, antennae and legs slightly lighter. Females are almost 4.5 mm (0.18 in) long, but otherwise very similar to workers. [2]
M. bidentatum is found in Chile and Argentina. [3] It was first described from Valdivia, Chile. [2]
The genus Antichthonidris contained only two species, A. bidentata and A. denticulata . [4] Both species were originally described by Gustav Mayr under genus Monomorium . [2] However, Antichthonidris was synonymized with Monomorium in 2001, so that this genus is no longer valid, and the two species are again known under their original name.[ citation needed ]
Gustav L. Mayr was an Austrian entomologist and professor in Budapest and Vienna. He specialised in Hymenoptera, being particularly known for his studies of ants.
Megalomyrmex is a genus of ant in the subfamily Myrmicinae. The genus is known only from the Neotropics, where some of the species are specialized parasites or predators of Attini.
Monomorium is a genus of ants in the subfamily Myrmicinae. As of 2013 it contains about 396 species. It is distributed around the world, with many species native to the Old World tropics. It is considered to be "one of the more important groups of ants," considering its widespread distribution, its diversity, and its variety of morphological and biological characteristics. It also includes several familiar pest species, such as the pharaoh ant and the flower ant.
Monomorium denticulatum is a species of ant in the subfamily Myrmicinae. It known from Chile and Argentina. Like M. bidentatum it was first described from Valdivia, Chile.
Brachymyrmex is a genus in the ants subfamily Formicinae. The genus can be recognized by the combination of having nine antennal segments and the petiole concealed by the gaster in dorsal view. They are sometimes called "rover ants".
Myrmecia nigriceps, also known as the black-headed bull ant, is a species of ant endemic to Australia. A member of the genus Myrmecia in the subfamily Myrmeciinae, it was first described by Austrian entomologist Gustav Mayr in 1862. These ants are large, varying from 19 to 23 millimetres in length. However, colonies contain workers that are much smaller, usually half the size of normal workers. The queens are the largest while the males are the smallest, which can be easily identified due to their small mandibles.
Prionomyrmex is an extinct genus of bulldog ants in the subfamily Myrmeciinae of the family Formicidae. It was first described by Gustav Mayr in 1868, after he collected a holotype worker of P. longiceps in Baltic amber. Three species are currently described, characterised by their long mandibles, slender bodies and large size. These ants are known from the Eocene and Late Oligocene, with fossil specimens only found around Europe. It is suggested that these ants preferred to live in jungles, with one species assumed to be an arboreal nesting species. These ants had a powerful stinger that was used to subdue prey. In 2000, it was suggested by Cesare Baroni Urbani that the living species Nothomyrmecia macrops and a species he described both belonged to Prionomyrmex, but this proposal has not been widely accepted by the entomological community. Instead, scientists still classify the two genera distinctive from each other, making Nothomyrmecia a valid genus.
Ochetellus glaber is a species of ant native to Australia. A member of the genus Ochetellus in the subfamily Dolichoderinae, it was described by Austrian entomologist Gustav Mayr in 1862. Aside from Australia, O. glaber has been introduced to a number of countries, including China, India, Japan, New Zealand, the Philippines and the United States, where it has established itself in Hawaii and Florida. It has been found on Lord Howe Island, New Caledonia, Norfolk Island, Réunion and the Solomon Islands. Compared with other ants, O. glaber is a small species, with workers measuring 2–3 mm (0.079–0.118 in). Males are the smallest at 1.6 mm (0.063 in), while the queens measure 5.2–5.5 mm (0.20–0.22 in). The ant's colour ranges from brown to black.
Prionomyrmecini is an ant tribe belonging to the subfamily Myrmeciinae established by William Morton Wheeler in 1915. Two members are a part of this tribe, the extant Nothomyrmecia and the extinct Prionomyrmex. The tribe was once considered a subfamily due to the similarities between Nothomyrmecia and Prionomyrmex, but such reclassification was not widely accepted by the scientific community. These ants can be identified by their long slender bodies, powerful stingers and elongated mandibles. Fossil Prionomyrmecini ants were once found throughout Europe, possibly nesting in trees and preferring jungle habitats. Today, Prionomyrmecini is only found in Australia, preferring old-growth mallee woodland surrounded by Eucalyptus trees. Nothomyrmecia workers feed on nectar and arthropods, using their compound eyes for prey and navigational purposes. Owing to their primitive nature, they do not recruit others to food sources or create pheromone trails. Nothomyrmecia colonies are small, consisting of 50 to 100 individuals.
Agroecomyrmex is an extinct genus of ants in the formicid subfamily Agroecomyrmecinae, for which it is the type genus. The genus contains a single described species, Agroecomyrmex duisburgi. Agroecomyrmex is known from a group of Middle Eocene fossils which were found in Europe.
Ochetellus is a genus of ants first described by Steve Shattuck in 1992. He placed it in the subfamily Dolichoderinae of the family Formicidae. The ants in this genus are small and black in colour; workers measure 1.75 to 3 millimetres in length, the males at around 1.6 millimetres (0.06 in) are smaller, and the queens are the largest, reaching 4 millimetres (0.16 in). There are seven described species and three described subspecies that mostly live in Australia in a wide variety of habitats, but some species are found in Asia. One species, Ochetellus glaber, has been introduced into New Zealand and the United States.
Gnamptogenys triangularis is a Neotropical species of ants in the subfamily Ectatomminae. Native to the forests of South and Central America, G. triangularis is a predatory ant that feeds on millipedes. In its native range, this species is known from Buenos Aires, Argentina in the south to Costa Rica in the north, with records from eight countries in South America, and two countries of Central America. The first records of G. triangularis outside its native range came from Florida beginning in 1985 and Alabama in 1996.
Royidris is a Malagasy genus of ants in the subfamily Myrmicinae. Described in 2014, the genus contains 15 species endemic to Madagascar.
Kempfidris is a Neotropical genus of ants in the subfamily Myrmicinae containing the single species Kempfidris inusualis. Known from Brazil, Ecuador and Venezuela, the species was originally described as Monomorium inusuale in 2007, but was reclassified as the type species for the new genus Kempfidris in 2014. The species is only known from workers and almost nothing is known about their natural history.
Linepithema fuscum is a species of ant in the genus Linepithema. Described by Mayr in 1866, the species is endemic to South America. Linepithema fucsum was the first species-level name assigned to genus Linepithema by Mayr. It is related to L. angulatum, L. keiteli, L. piliferum and L. tsachila. However, only Linepithema fuscum remains without a worker association and it could be possible that males of Linepithema fuscum actually belong to the workers of L. angulatum. Little is known about Linepithema fuscum due to the scarcity of the collected samples.
Linepithema micans is a small species of ant from the genus Linepithema which was described by Forel in 1908. This ant is endemic to southern South America. In Brazil, it is considered a pest of vineyards in acting as the main species associated with the coccid Eurhizococcus brasiliensis. It is still a poorly studied species. Their abundant larvae are round and whitish, almost indistinguishable from the proximate species Linepithema humile, better known as the invasive Argentine ant.
Dorymyrmex planidens is a species of ant in the genus Dorymyrmex. Described by Gustav Mayr in 1868, the species is endemic to Argentina and Chile.
Dorymyrmex tener is a species of ant in the genus Dorymyrmex. Described by Gustav Mayr in 1868, the species is endemic to Argentina and Chile.
Novomessor albisetosus, also known as the desert harvester ant, is a species of ant found in the United States and Mexico. A member of the genus Novomessor in the subfamily Myrmicinae, it was first described by Austrian entomologist Gustav Mayr in 1886. It was originally placed in the genus Aphaenogaster, but a recent phylogenetic study concluded that it is genetically distinct and should be separated. It is a medium-sized species, measuring 6 to 8.5 millimeters and has a ferruginous body color. It can be distinguished from other Novomessor species by its shorter head and subparallel eyes.
