| Acanthostichus arizonensis | |
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| Head view of an A. arizonensis worker | |
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| Species: | A. arizonensis |
| Binomial name | |
| Acanthostichus arizonensis Mackay, W.P., 1996 | |
Acanthostichus arizonensis is a species of ant belonging to the genus Acanthostichus . It was described by Mackay in 1996. These ants are distributed in the United States and Mexico. [1]
Adetomyrma venatrix, more commonly known as the Dracula ant, so named because of its grisly feeding habits of drinking the blood of its young, is an endangered species of ants endemic to Madagascar. Workers of this species are blind. The species was described as the type species of Adetomyrma in 1994, with the genus being an atypical member of its tribe.
Camposaurus is a coelophysoid dinosaur genus from the Norian stage of the Late Triassic period of North America. The pertinent fossil remains date back to the early to middle Norian stage, and is widely regarded as the oldest known neotheropod.
The Antilocapridae are a family of artiodactyls endemic to North America. Their closest extant relatives are the giraffids with which they comprise the superfamily Giraffoidea. Only one species, the pronghorn, is living today; all other members of the family are extinct. The living pronghorn is a small ruminant mammal resembling an antelope.
Pelegrina is a spider genus of the family Salticidae. They are found throughout North America. Many of the species in Pelegrina were previously placed in the genera Metaphidippus, and before that, Dendryphantes. The genus was originally described in 1930 by the Spanish arachnologist Pelegrín Franganillo Balboa, who named it after himself.
Strumigenys is a genus of ants in the subfamily Myrmicinae.
Sympistis arizonensis is a moth of the family Noctuidae first described by William Barnes in 1928. It is found in the United States in southeastern Arizona as well as northern Colorado. It was formerly known as Oncocnemis arizonensis, but was transferred to the genus Sympistis in 2008.
Trachymyrmex is a genus of fungus-growing ants in the subfamily Myrmicinae. The genus is mainly tropical in distribution, with most species being found in Central and South America.
Myrmeciites is an extinct form genus of bulldog ants in the subfamily Myrmeciinae of the family Formicidae, which contains three described species and two fossils not placed beyond the genus level. Described in 2006 from Ypresian stage deposits, all three of the described species and one unplaced fossil are from British Columbia, Canada, while the second unplaced fossil is from Washington State, USA. These ants were large, with the largest specimens collected reaching 3 centimetres (1.2 in). The behaviour of these ants would have been similar to extant Myrmeciinae ants, such as solitary foraging, nesting either in the soil or trees, and leaving no pheromone trail to food sources. Due to the poor preservation of these ants, their phylogenetic position among Myrmeciinae is unclear, and no type species has been designated. These ants are classified as incertae sedis in Myrmeciinae, but some writers have classified it as incertae sedis within the insect order Hymenoptera. This reclassification, however, has not been accepted; instead, Myrmeciites remains in Myrmeciinae.
Acanthostichus is a predatory and predominantly subterranean genus of ant in the subfamily Dorylinae. They are found in the New World, from the southern United States to Uruguay, Paraguay and northern Argentina. They are probably common, but due to their subterranean nature, they are seldom collected or seen.
Brownimecia is an extinct genus of ants, the only genus in the tribe Brownimeciini and subfamily Brownimeciinae of the Formicidae. Fossils of the single identified species, Brownimecia clavata, are known from the Middle Cretaceous of North America. The genus is one of several ants described from Middle Cretaceous ambers of New Jersey. Brownimecia was initially placed in the subfamily Ponerinae, until it was transferred to its own subfamily in 2003; it can be distinguished from other ants due to its unusual sickle-like mandibles and other morphological features that makes this ant unique among the Formicidae. The ant is also small, measuring 3.43 millimetres (0.135 in), and a stinger is present in almost all of the specimens collected. The morphology of the mandibles suggest a high level of feeding specialization.
Acanthostichus hispaniolicus is an extinct species of ant in the subfamily Dorylinae known from a group of possibly Miocene fossils found on Hispaniola. A. hispaniolicus is the first species of the ant genus Acanthostichus to have been described from fossils found in Dominican amber and is the only species of Acanthostichus found in the West Indies.
Archimyrmex is an extinct genus of ant in the formicid subfamily Myrmeciinae, described by palaeoentomologist Theodore Cockerell in 1923. The genus contains four described species, Archimyrmex rostratus, Archimyrmex piatnitzkyi, Archimyrmex smekali and Archimyrmex wedmannae. Archimyrmex is known from a group of Middle Eocene fossils which were found in North America, South America, and Europe. The genus was initially placed in the subfamily Ponerinae, but it was later placed in Myrmeciinae; it is now believed to be the ancestor of the extant primitive genus Myrmecia from Australia. Despite this, Archimyrmex is not a member to any tribe and is regarded as incertae sedis within Myrmeciinae. However, some authors believe Archimyrmex should be assigned as incertae sedis within Formicidae. These ants can be characterised by their large mandibles and body length, ranging from 13.2 to 30 mm. They also have long, thin legs and an elongated mesosoma (thorax) and petiole.
Acanthostichus bentoni is a species of ant belonging to the genus Acanthostichus. It was described by Mackay in 1996. These ants are distributed in Brazil.
Acanthostichus brevicornis is a species of ant belonging to the genus Acanthostichus. Emery first described the species in 1894, and a synonym was given by Bruch in 1924. Their distribution is in South America, in the countries of Argentina, Brazil, Guyana, Paraguay and Suriname.
Crematogaster arizonensis is a species of ant in tribe Crematogastrini. It was described by Wheeler in 1908.
Araneus arizonensis is a species of spider in the family Araneidae, found in United States and Mexico.
Eutrichites is a genus of ant-loving beetles in the family Staphylinidae. There are at least two described species in Eutrichites.
Mexalictus is a genus of sweat bees in the family Halictidae. There are more than 20 described species in Mexalictus.
Stenolemoides is a genus of thread-legged bugs in the family Reduviidae. There are at least three described species in Stenolemoides.
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