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Xyela Alpigena
''Xyela alpigena'' is a species of sawfly in the genus '' Xyela'' and is endemic to North America. It can be found from Quebec to Maryland and Maine, and west to Utah and New Mexico. The host plant for the larvae is ''Pinus strobus ''Pinus strobus'', commonly called the eastern white pine, northern white pine, white pine, Weymouth pine (British), and soft pine is a large pine native to eastern North America. It occurs from Newfoundland (island), Newfoundland, Canada, west ...''. References alpigena{{sawfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gabriel Strobl
Gabriel Strobl (3 November 1846 in Unzmarkt, Styria, Austrian Empire – 15 March 1925 in Admont, Benediktinerstift) was an Austrian Roman Catholic priest and entomologist who specialised in Diptera. In 1866 the then 20-year-old Gabriel Strobl became a Roman Catholic priest monk (''Pater'') at the Benedictine monastery Admont Abbey (Stift Admont). A devastating monastery fire in 1865 had destroyed the Natural History Cabinet (a museum) and its contents which had included Joseph Stammel’s Universe. He was entrusted by Abbot Karlmann Hieber (served 1861–1868) with rebuilding the Natural History Museum. In 44 years of work - until his stroke in 1910 - Gabriel Strobl built up the Museum anew. In his first 12 years of work, he devoted himself principally to botany, before dedicating himself completely to entomology for the following 32 years. Although his published work is mainly on Diptera he also worked on Hymenoptera and Coleoptera of the Balkan peninsula which was parti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sievert Allen Rohwer
Sievert Allen Rohwer (22 December 1887 in Telluride, Colorado, Telluride – 12 February 1951) was an American entomologist who specialized in Hymenoptera. He was a graduate of the University of Colorado. At the time of his death, Rohwer was serving as the Coordinator Defense Activities for the Agricultural Research Administration within the U.S. Department of Agriculture. Rohwer worked for the USDA from 1909 until his death. Rohwer wrote ''Technical papers on miscellaneous forest insects. II. The genotypes of the sawflies or woodwasps, or the superfamily Tenthredinoidea''. Technical series US Department of Agriculture, Bureau of Entomology, Washington, DC 20: 69–109 (1911) and many papers describing new species of Hymenoptera. His collection is held by the National Museum of Natural History, Smithsonian Institution Washington D. C. His zoological author abbreviations is Rohwer. Selected publications * * * * * See also * :Taxa named by Sievert Allen Rohwer, Taxa named by Siev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sawfly
Sawflies are wasp-like insects that are in the suborder Symphyta within the order Hymenoptera, alongside ants, bees, and wasps. The common name comes from the saw-like appearance of the ovipositor, which the females use to cut into the plants where they lay their eggs. The name is associated especially with the Tenthredinoidea, by far the largest superfamily in the suborder, with about 7,000 known species; in the entire suborder, there are 8,000 described species in more than 800 genera. Symphyta is paraphyletic, consisting of several basal groups within the order Hymenoptera, each one rooted inside the previous group, ending with the Apocrita which are not sawflies. The primary distinction between sawflies and the Apocrita – the ants, bees, and wasps – is that the adults lack a "wasp waist", and instead have a broad connection between the abdomen and the thorax. Some sawflies are Batesian mimics of wasps and bees, and the ovipositor can be mistaken for a stinger. S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xyela
''Xyela'' is a genus of sawflies, belonging to the family Xyelidae. The genus was described in 1819 by Dalman. Ecology The genus has cosmopolitan distribution. Larvae of most species of ''Xyela'' live and feed in the developing staminate cones of '' Pinus (Pine)'' species. One species, '' gallicaulis'', forms shoot galls. Adults fly early in the spring and are commonly found in large numbers on the catkins of '' Salix (Willow)'' or '' Alnus (Alder)'' trees near their host plants. List of species Subgenus ''Xyela'' * '' Xyela alberta'' (Curran, 1923) * '' Xyela altenhoferi'' Blank, 2013 * ''Xyela alpigena'' (Strobl, 1895) * ''Xyela bakeri'' Konow, 1898 * ''Xyela brunneiceps'' Rohwer, 1913 * ''Xyela californica'' Rohwer, 1913 * ''Xyela cheloma'' Burdick, 1961 * ''Xyela concava'' Burdick, 1961 * ''Xyela curva'' Benson, 1938 * ''Xyela densiflorae'' Blank & Shinohara, 2005 * ''Xyela deserti'' Burdick, 1961 * ''Xyela dodgei'' Greenbaum, 1974 * '' Xyela exilicornis'' Maa, 1949 * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the south and west by the Pacific Ocean. The region includes Middle America (Americas), Middle America (comprising the Caribbean, Central America, and Mexico) and Northern America. North America covers an area of about , representing approximately 16.5% of Earth's land area and 4.8% of its total surface area. It is the third-largest continent by size after Asia and Africa, and the list of continents and continental subregions by population, fourth-largest continent by population after Asia, Africa, and Europe. , North America's population was estimated as over 592 million people in list of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's popula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Strobus
''Pinus strobus'', commonly called the eastern white pine, northern white pine, white pine, Weymouth pine (British), and soft pine is a large pine native to eastern North America. It occurs from Newfoundland (island), Newfoundland, Canada, west through the Great Lakes region to southeastern Manitoba and Minnesota, United States, and south along the Appalachian Mountains and upper Piedmont (United States), Piedmont to northernmost Georgia (U.S. state), Georgia and very rare in some of the higher elevations in northeastern Alabama. It is considered rare in Indiana. The Haudenosaunee maintain the tree as the central symbol of their multinational confederation, calling it the "Tree of Peace", where the Seneca use the name ''o’sóä’'' and the Mohawk people, Kanienʼkehá:ka call it ''onerahtase'ko:wa''. Within the Wabanaki Confederacy, the Mi'kmaq use the term ''guow'' to name the tree, both the Maliseet, Wolastoqewiyik and Passamaquoddy, Peskotomuhkatiyik call it ''kuw'' or ''ku ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
