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Eusphinctus
''Sphinctomyrmex'' is a genus of ants in the subfamily Dorylinae. The genus is a tropical and distinctive group, originally described by Gustav Mayr, Mayr based on a single gyne collected in Brazil. Morphology (biology), Morphologically, the genus is characterized by the unique arrangement of the gaster (insect anatomy), gastric segments, which are nearly equal in length and separated from each other by distinct constrictions. Very little is known on the natural history of ''Sphinctomyrmex''. The few observations so far suggest that ants of this genus are nomadic predators of other ants. The genus '' Zasphinctus'' and approximately 20 species were formerly included, but were split out during revision of the Dorylinae genera by Borowiec (2016). Species * ''Sphinctomyrmex marcoyi'' * ''Sphinctomyrmex schoerederi'' * ''Sphinctomyrmex stali'' References External links * Dorylinae Ant genera Hymenoptera of South America {{ant-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zasphinctus
''Zasphinctus'' is a genus of ants in the subfamily Dorylinae. The genus is a pantropical and distinctive group, originally described by Wheeler (1918) based on ''"Sphinctomyrmex ''Sphinctomyrmex'' is a genus of ants in the subfamily Dorylinae. The genus is a tropical and distinctive group, originally described by Gustav Mayr, Mayr based on a single gyne collected in Brazil. Morphology (biology), Morphologically, the genu ..." turneri'' collected in Queensland, Australia. ''Zasphinctus'' was first described as a subgenus of ''"Eusphinctus"'', and then synonymized into ''Sphinctomyrmex'', to later be raised to full genus status by Borowiec (2016), who included approximately 20 species in the new genus circumscription. Species * '' Zasphinctus asper'' * '' Zasphinctus caledonicus'' * '' Zasphinctus cedaris'' * '' Zasphinctus chariensis'' * '' Zasphinctus clarus'' * '' Zasphinctus cribratus'' * '' Zasphinctus duchaussoyi'' * '' Zasphinctus emeryi'' * '' Zasphinctus frogg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorylinae
Dorylinae is an ant subfamily, with distributions in both the Old World and New World. Brady ''et al.'' (2014) Synonym (taxonomy), synonymized the previous dorylomorph subfamilies (Aenictinae, Aenictogitoninae, Cerapachyinae, Ecitoninae, and Leptanilloidinae) under Dorylinae, while Borowiec (2016) reviewed and revised the genera, resurrecting many genera which had previously been merged. Dorylinae genera are suggested to have evolved sometime between , subsequently undergoing rapid adaptive radiation events during their early history. Dorylinae ants including Eciton species, exhibit army ant behavior. Non-army Doryline ants like ''Yunodorylus'' provides evolution of the army ant adaptive syndrome, including group foraging, nomadism, and specialized queens. Genera *''Acanthostichus'' Mayr, 1887 *''Aenictogiton'' Emery, 1901 *''Aenictus'' Shuckard, 1840 *''Cerapachys'' Smith, 1857 *''Cheliomyrmex'' Mayr, 1870 *''Chrysapace'' Crawley, 1924 *''Cylindromyrmex'' Mayr, 1870 *''Dorylus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav Mayr
Gustav L. Mayr (12 October 1830 – 14 July 1908) was an Austrian Entomology, entomologist and professor in Budapest and Vienna. He specialised in Hymenoptera, being particularly known for his studies of ants.1908. Obituary. Prof. Gustav Mayr. Entomological News 19:396 Bibliography In 1868, he was the first to describe the Argentine ant. He is credited with naming the harvesting ant species, ''Aphaenogaster treatae'', for naturalist Mary Treat, Mary Davis Treat, in honor of her research on the species. edite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaster (insect Anatomy)
The gaster () is the bulbous posterior portion of the metasoma found in hymenopterans of the suborder Apocrita (bees, wasps and ants). This begins with abdomen, abdominal segment III on most ants, but some make a constricted Petiole (insect anatomy) , postpetiole out of segment III, in which case the gaster begins with abdominal segment IV. The gaster in ants contains what is sometimes called the "social stomach," which is named for the fact that food can be carried within it and then shared with other members of the colony. It also contains the ant's heart as well as the rest of their digestive system. In the ant subfamily Formicinae, the gaster houses an acidiphore which they can use to spray formic acid. Certain ants in the genus ''Cataglyphis'', including ''Cataglyphis bicolor'' and ''Cataglyphis fortis'', have a cubiform petiole that allows them to decrease their inertia (and therefore increase their speed) by raising their gaster into an upright position. The ant speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AntWeb
AntWeb is the leading online database on ants: storing specimens images and records, and natural history information, and documenting over 490,000 specimens across over 35,000 taxa In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and ... of ants in its open source and community driven repository . It was set up by Brian L. Fisher in 2002, and cost US$30,000 to build. References External links Website Entomological databases Myrmecology {{Database-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphinctomyrmex Stali
''Sphinctomyrmex stali'' (named after the Swedish entomologist Carl Stål) is a Neotropical species of ants in the subfamily Dorylinae. Mayr described the genus ''Sphinctomyrmex'' with ''S. stali'' as its type species, based on a single dealate gyne. However, except for the holotype, there are no records of normal (alate) gynes for ''S. stali''. All reproductive females collected after the original description are ergatoids. Distribution and habitat ''Sphinctomyrmex stali'' is known from sparse localities along the southeastern portion of the Brazilian Atlantic Forest, from Santa Catarina to southern Bahia. Recent collections suggest that this species can be most commonly found in submontane forests (above 600 m) of the states of Santa Catarina and São Paulo, from whence come most of the specimens in collections. In a single leaf-litter sample collected in São Bonifácio, Santa Catarina, six workers and two ergatoid gynes very similar to the workers, were captured, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphinctomyrmex Schoerederi
''Sphinctomyrmex schoerederi'' is a Neotropical species of ants in the subfamily Dorylinae. ''S. schoerederi'' is known only from the holotype, collected in a leaf litter sample from a forest remnant in the campus of Universidade Federal de Viçosa in Brazil, where it occurs in sympatry with '' S. stali''. Gynes and males are unknown. Description Nothing is known about its biology. This species can hardly be confounded with other congeners given the combination of subquadrate head, anterior margin of clypeus with two lateral lobes projecting over the mandibles In jawed vertebrates, the mandible (from the Latin ''mandibula'', 'for chewing'), lower jaw, or jawbone is a bone that makes up the lowerand typically more mobilecomponent of the mouth (the upper jaw being known as the maxilla). The jawbone i ..., abdominal segments IV to VII with strongly developed pretergites, and the presence of short appressed hairs on the dorsal surface of gaster. References * * Dorylin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphinctomyrmex Marcoyi
''Sphinctomyrmex marcoyi'' is a Neotropical species of ants in the subfamily Dorylinae. It is the only ''Sphinctomyrmex'' species recorded in the Amazon Forest. Gynes and males are unknown. Description ''Sphinctomyrmex marcoyi'' is known only from the holotype, a worker collected from a soil sample. Nothing is known about its biology. ''S. marcoyi'' can be easily separated from other species in the genus by its comparatively diminutive size, conspicuously elongate head, comparatively short scapes, and by the presence of a smooth longitudinal stripe on the dorsum of mesosoma The mesosoma is the middle part of the body, or tagma, of arthropods whose body is composed of three parts, the other two being the prosoma and the metasoma. It bears the legs, and, in the case of winged insects, the wings. Wasps, bees and a ..., which is otherwise covered by foveolae and subdecumbent to erect hairs. References * * Dorylinae Insects described in 2011 Hymenoptera of South Ame ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazil
Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population, seventh-largest by population, with over 212 million people. The country is a federation composed of 26 Federative units of Brazil, states and a Federal District (Brazil), Federal District, which hosts the capital, Brasília. List of cities in Brazil by population, Its most populous city is São Paulo, followed by Rio de Janeiro. Brazil has the most Portuguese-speaking countries, Portuguese speakers in the world and is the only country in the Americas where Portuguese language, Portuguese is an Portuguese-speaking world, official language. Bounded by the Atlantic Ocean on the east, Brazil has a Coastline of Brazil, coastline of . Covering roughly half of South America's land area, it Borders of Brazil, borders all other countries and ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphology (biology)
Morphology (from Ancient Greek μορφή (morphḗ) "form", and λόγος (lógos) "word, study, research") is the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance (shape, structure, color, pattern, size), as well as the form and structure of internal parts like bones and organs, i.e., anatomy. This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of the overall structure of an organism or taxon and its component parts. History The etymology of the word "morphology" is from the Ancient Greek (), meaning "form", and (), meaning "word, study, research". While the concept of form in biology, opposed to function, dates back to Aristotle (see Aristotle's biology), the field of morphology was developed by Johann Wolfgang von Goethe (1790) and independently by the German anatomist and physiologist Karl Fried ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Felix Santschi
Felix Santschi (1 December 1872 – 20 November 1940) was a Swiss entomologist known for discovering that ants use the sun as a compass and for describing about 2000 taxa of ants. Santschi is known for his pioneering work on the navigational abilities of ant Ants are Eusociality, eusocial insects of the Family (biology), family Formicidae and, along with the related wasps and bees, belong to the Taxonomy (biology), order Hymenoptera. Ants evolved from Vespoidea, vespoid wasp ancestors in the Cre ...s. In one experiment, he investigated the way harvester ants used the sky to navigate. He found that as long as even a small patch of sky was visible, the ants could return directly to the nest after gathering food. However, when the sky was completely hidden, they lost their sense of direction and began moving haphazardly. Some seventy years later it was shown that ants are guided by the polarization of light. References 1872 births 1940 deaths Swiss entomologists Myrm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gyne
The gyne (, from Greek γυνή, "woman") is the primary reproductive female caste of social insects (especially ants, wasps, and bees of order Hymenoptera, as well as termites). Gynes are those destined to become queens, whereas female workers are typically barren and cannot become queens. Having a queen is what makes a "queenright" hive, nest, or colony of eusocial insects. A colony with multiple queens is said to be a polygyne form, whereas one with only one is a monogyne form. The ancient Greek origin of ''gyne'' meant a woman who had given birth to at least one child. In species lacking morphological castes (i.e., where "workers" may not be sterile), the term "gyne" is usually reserved for those females whose entire life is spent as a reproductive or potential reproductive, as opposed to those who start life as a worker and subsequently attain reproductive status (often called a "replacement queen" or a "laying worker"). These can be seen in certain species of stingless be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
