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Myrmecocystus Mexicanus
''Myrmecocystus mexicanus'' is a species of ant in the genus ''Myrmecocystus'', which is one of the six genera that bear the common name "honey ant" or "honeypot ant", due to curious behavior where some of the workers will swell with liquid food until they become immobile and hang from the ceilings of nest chambers, acting as living food storage for the colony. Honey ants are found in North America, Australia, and Africa. Ant species belonging to the genus ''Myrmecocystus'' reside in North America. ''M. mexicanus'' in particular is found in the southwestern United States and parts of Mexico. Description Workers range from 3–7 mm in length and have a light tan thorax, legs and slightly darker head with black mandibles. The gaster is brownish-gray. Queens are roughly 9 mm in length. The head and mandibles are a reddish brown. The thorax is yellowish brown, and the gaster is a lighter shade of yellow. The legs are a dull yellow. Males are typically about 6 mm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constantin Wesmael
Constantin Wesmael (4 October 1798, in Brussels – 26 October 1872, near to Saint-Josse-ten-Noode) was a Belgian entomologist. Life Of modest origin, he was granted a bursary to study law. He taught, initially, humanities in Charleroi before teaching sciences at the Athenaeum of Brussels. He was, next a professor of zoology at the school of veterinary surgeon and agriculture. He specialized in Ichneumonidae. Collection According to a note made by Baron de Sélys Longchamps, Wesmael gave his Braconidae to Mr. Haliday, without knowing however that this Irish scientist would be later established in Italy, and that after his death his collection would pass via Edward Perceval Wright to Dublin Museum. However, in the copy of the biography of Wesmael by Selys, Dr. Jacobs noted next to the sentence written by Selys (p. 235) (He gave his Braconides to Mr. Haliday), this note:: Error! they were found by me... Both statements are true and Wesmael's Braconidae are divided b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queen Ant
A queen ant (formally known as a gyne) is an adult, reproducing female ant in an ant colony; generally she will be the mother of all the other ants in that colony. Some female ants, such as the '' Cataglyphis'', do not need to mate to produce offspring, reproducing through asexual parthenogenesis or cloning, and all of those offspring will be female. Others, like those in the genus ''Crematogaster'', mate in a nuptial flight. Queen offspring ants develop from larvae specially fed in order to become sexually mature among most species. Depending on the species, there can be either a single mother queen, or potentially hundreds of fertile queens in some species. A queen of ''Lasius niger'' was held in captivity by German entomologist Hermann Appel for 28 years; also a ''Pogonomyrmex owyheei'' has a maximum estimated longevity of 30 years in the field. Life cycle Development Ants go through four stages of development: egg, larva, pupa (sometimes cocoon, called metamorphosis depending ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formicinae
The Formicinae are a subfamily within the Formicidae containing ants of moderate evolutionary development. Formicines retain some primitive features, such as the presence of cocoons around pupae, the presence of ocelli in workers, and little tendency toward reduction of palp or antennal segmentation in most species, except subterranean groups. Extreme modification of mandibles is rare, except in the genera ''Myrmoteras'' and ''Polyergus''. However, some members show considerable evolutionary advancement in behaviors such as slave-making and symbiosis with root-feeding hemipterans. Finally, all formicines have very reduced stings and enlarged venom reservoirs, with the venom gland, specialized (uniquely among ants) for the production of formic acid. All members of the Formicinae "have a one-segmented petiole in the form of a vertical scale". Identification Formicine ants have a single node-like or scale-like petiole (postpetiole entirely lacking) and the apex of the abdom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chapman & Hall
Chapman & Hall is an imprint owned by CRC Press, originally founded as a British publishing house in London in the first half of the 19th century by Edward Chapman and William Hall. Chapman & Hall were publishers for Charles Dickens (from 1840 until 1844 and again from 1858 until 1870), Thomas Carlyle, William Thackeray, Elizabeth Barrett Browning, Anthony Trollope, Eadweard Muybridge and Evelyn Waugh. History Upon Hall's death in 1847, Chapman's cousin Frederic Chapman began his progress through the ranks of the company and eventually becoming a partner in 1858 and sole proprietor on Edward Chapman's retirement from Chapman & Hall in 1866. In 1868 author Anthony Trollope bought a third of the company for his son, Henry Merivale Trollope. From 1902 to 1930 the company's managing director was Arthur Waugh. In the 1930s the company merged with Methuen, a merger which, in 1955, participated in forming the Associated Book Publishers. The latter was acquired by The Thomson Corp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomological News
Entomology () is the scientific study of insects, a branch of zoology. In the past the term "insect" was less specific, and historically the definition of entomology would also include the study of animals in other arthropod groups, such as arachnids, myriapods, and crustaceans. This wider meaning may still be encountered in informal use. Like several of the other fields that are categorized within zoology, entomology is a taxon-based category; any form of scientific study in which there is a focus on insect-related inquiries is, by definition, entomology. Entomology therefore overlaps with a cross-section of topics as diverse as molecular genetics, behavior, neuroscience, biomechanics, biochemistry, systematics, physiology, developmental biology, ecology, morphology, and paleontology. Over 1.3 million insect species have been described, more than two-thirds of all known species. Some insect species date back to around 400 million years ago. They have many kinds of intera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Midland Naturalist
''The American Midland Naturalist'' is a quarterly peer-reviewed scientific journal covering natural history. It was established in 1909 by Julius Nieuwland and is published by the University of Notre Dame. According to the ''Journal Citation Reports'', the journal has a 2013 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 0.621. References External links * History of the journal* {{DEFAULTSORT:American Midland Naturalist Biology journals English-language journals Publications established in 1909 Quarterly journals Academic journals published by universities and colleges of the United States 1909 establishments in Indiana University of Notre Dame academic journals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conomyrma Bicolor
''Dorymyrmex bicolor'' is a species of ant in the Dolichoderinae subfamily, known by some as cone ants due to the shape of their mounds. ''Dorymyrmex bicolor'' was recently known as ''Conomyrma bicolor'' but has been renamed to ''Dorymyrmex bicolor''. ''Dorymyrmex bicolor'' has a single petiole and a slit-like orifice which releases chemical compounds. This ant does not have the capability to sting. ''Dorymyrmex bicolor'' is primarily found in arid desert regions in Central and South America and the southwestern United States. Tool use ''Dorymyrmex bicolor'' regularly interacts with three different species of ''Myrmecocystus ''Myrmecocystus'' is a North American genus of ants in the subfamily Formicinae. It is one of five genera that includes honeypot ants. Worker ants keep and tend plerergates, which are other ants that store large quantities of nutritious fluid i ...'', another genus of ants. Between the two genera of ants, in the southwestern region, there is much ov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pogonomyrmex Occidentalis
''Pogonomyrmex occidentalis'', or the western harvester ant, is a species of ant that inhabits the deserts and arid grasslands of the American West at or below . Like other harvester ants in the genus ''Pogonomyrmex'', it is so called because of its habit of collecting edible seeds and other food items. The specific epithet "''occidentalis''", meaning "of the west", refers to the fact that it is characteristic of the interior of the Western United States; its mounds of gravel, surrounded by areas denuded of plant life, are a conspicuous feature of rangeland. When numerous, they may cause such loss of grazing plants and seeds, as to constitute both a severe ecological and economic burden. They have a painful and venomous sting.Capinera, John L. Encyclopedia of Entomology. Publisher: Springer 2008. Colonies Mature colonies consist of up to 20,000 workers and one queen. A queen can live up to 40 years, and many colonies survive for 20 years. Colonies of the close relative, '' P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holcaspis Perniciosus
''Holcaspis'' is a genus of beetles in the family Carabidae, endemic to New Zealand. Taxonomy The genus was originally proposed by Chaudoir in 1865, with a large number of species added by Thomas Broun in the late 19th century and early 20th century. The genus was revised by Everard Britton in 1940, and most recently by Michael Butcher in 1984, with several species added by Peter Johns in 2003. A phylogenetic analysis by Hanboonsong generally agreed with Butcher's species list, but found that ''H. oedicnema'' displayed an unusual amount of genetic variation and is probably a species complex. Description ''Holcaspis'' beetles are black ground beetles, ranging between 10–26 mm in length. The mentum has deep pits on either side, and the labrum has six setae. The head has a variable H-shaped impression between the eyes. All species are flightless, with fused elytra. Species are distinguished by their patterns of setae, grooves, and punctures, and features of the male genit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Gambelii
''Quercus gambelii'', with the common name Gambel oak, is a deciduous small tree or large shrub that is widespread in the foothills and lower mountains of western North America. It is also regionally called scrub oak, oak brush, and white oak. The common and scientific names, Gambel oak and ''Quercus gambelii'', were named after the American naturalists, naturalist William Gambel (1821–1849). Description ''Quercus gambelii'' trees differ in size from one location to another. The average mature height is from , but occasionally reaches heights of in some locations. Dwarf stands of plants under tall are common in marginal areas where heavy browsing occurs. The largest trees are found in the southern range of the species along streams. These trees reach up to 100 feet tall. The champion tree is in Arizona at tall. Although the wood is hard and dense, its branches are irregular and crooked, making them flexible enough to bend without breaking when covered with heavy sno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yucca Glauca
''Yucca glauca'' (syn. ''Yucca angustifolia'') is a species of perennial evergreen plant, adapted to xeric (dry)growth conditions. It is also known as small soapweed, soapweed yucca, Spanish bayonet, and Great Plains yucca. ''Yucca glauca'' forms colonies of rosettes. Leaves are long and narrow, up to 60 cm long but rarely more than 12 mm across. Inflorescence is up to 100 cm tall, sometimes branched sometimes not. Flowers are pendent (drooping, hanging downward), white to very pale green. Fruit is a dry capsule with shiny black seeds. Distribution ''Yucca glauca'' is native to central North America: occurring from the Canadian Prairies of Alberta and Saskatchewan in Canada; south through the Great Plains to Texas and New Mexico in the United States. Pollinators The "honey ant" (''Myrmecocystus mexicanus''), among other species, has been observed collecting nectar from ''Y. glauca''. Uses Soapweed yucca was a traditional Native American medical plant, used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fructose
Fructose, or fruit sugar, is a Ketose, ketonic monosaccharide, simple sugar found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. It is one of the three dietary monosaccharides, along with glucose and galactose, that are absorbed by the gut directly into the blood of the portal vein during digestion. The liver then converts both fructose and galactose into glucose, so that dissolved glucose, known as blood sugar, is the only monosaccharide present in circulating blood. Fructose was discovered by French chemist Augustin-Pierre Dubrunfaut in 1847. The name "fructose" was coined in 1857 by the English chemist William Allen Miller. Pure, dry fructose is a sweet, white, odorless, crystalline solid, and is the most water-soluble of all the sugars. Fructose is found in honey, tree and vine fruits, flowers, Berry, berries, and most List of root vegetables, root vegetables. Commercially, fructose is derived from sugar cane, sugar beets, and maize. Hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
