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Eulonchus Tristis
''Eulonchus tristis'' is a species of small-headed flies in the family Acroceridae. A study in 2008 found that individuals of the species visiting flowers of ''Brodiaea elegans'' and ''Iris douglasiana'' in California carried large pollen loads, with no differences in amount or diversity with respect to sex. The species may be an important pollinator A pollinator is an animal that moves pollen from the male anther of a flower to the female stigma of a flower. This helps to bring about fertilization of the ovules in the flower by the male gametes from the pollen grains. Insects are the maj ..., particularly of ''Brodiaea elegans'' and '' Iris bracteata''. References Further reading * Acroceridae Articles created by Qbugbot Insects described in 1872 {{Nemestrinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Loew
Friedrich Hermann Loew (19 July 1807 – 21 April 1879) was a German entomologist who specialised in the study of Diptera, an order of insects including flies, mosquitoes, gnats and midges. He described many world species and was the first specialist to work on the Diptera of the United States. Biography Early years Hermann Loew was born in Weissenfels, Saxony a short distance south of Halle (Germany). The Loew family, though not wealthy, was well-placed. Loew's father was a functionary for the Department of Justice of the Duchy of Saxony who later became a ''Geheimer Regierungsrath'' of Prussia. Between 1817 and 1829 Loew attended first the Convent school of Rossleben, then the University of Halle-Wittenberg, graduating in mathematics, philology and natural history. Teacher, tutor and husband Recognizing his abilities as a mathematician, the university, on his graduation, appointed him as a lecturer in the same subjects. In 1830 he went to Berlin and gave lessons in differen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acroceridae
The Acroceridae are a small family (biology), family of odd-looking flies. They have a hump-backed appearance with a strikingly small head, generally with a long proboscis for accessing nectar. They are rare and not widely known. The most frequently applied common names are small-headed flies or hunch-back flies. Many are bee or wasp mimicry, mimics. Because they are parasitoids of spiders, they also are sometimes known as spider flies. Description The Acroceridae vary in size from small to fairly large, about the size of large bees, with a wingspan over 25 mm in some species. As a rule, both sexes have tiny heads and a characteristic hump-backed appearance because of the large, rounded thorax. In appearance, they are compact flies without major bristles, but many species have a bee-like hairiness on their bodies, and some are bee or wasp mimicry, mimics. In most species, the eyes are holoptic in both sexes, the heads seemingly composed mainly of the large ommatidia, facete ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brodiaea Elegans
''Brodiaea elegans'' is a species of flowering plant in the cluster-lily genus known by the common names harvest brodiaea, elegant brodiaea, and elegant cluster-lily. The bulb is native to the mountain ranges of California and Oregon, where it grows in woodlands and meadows. Description ''Brodiaea elegans'' is a perennial that produces a stout stemlike inflorescence up to 50 centimeters tall. It bears showy flowers on pedicels up to 10 centimeters long. Each flower has six curving tepals up to 3 centimeters long in shades of bright purple. In the center of the flower are white or pale purple sterile stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filame ...s known as staminodes; these are flat with pointed or toothed tips and between one half and one centimeter in length. Next t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iris Douglasiana
''Iris douglasiana'', the Douglas iris, is a common wildflower of the coastal regions of Northern and Central California and southern Oregon in the United States. It grows mainly at lower elevations, below , though it is occasionally found at heights of up to . It is most common in grasslands near the coast; it is regarded as a noxious weed in pastures, because it forms clumps that inhibit other vegetation, and its leaves are bitter and unpalatable to cattle. This is a typical beardless iris of subgenus '' Limniris'', series '' Californicae'', growing from a rhizome that is typically less than a centimeter in diameter. Its leaves are about wide. The flowers, appearing from April to June, are usually a purplish-blue, though occasionally white or yellow flowers are found. Two or three flowers are found on each stem, which is of variable height, ranging from tall. Taxonomy It was first described by 19th century botanist David Douglas in Monterey, California. It was first publis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollinator
A pollinator is an animal that moves pollen from the male anther of a flower to the female stigma of a flower. This helps to bring about fertilization of the ovules in the flower by the male gametes from the pollen grains. Insects are the major pollinators of most plants, and insect pollinators include all families of bees and most families of aculeate wasps; ants; many families of flies; many lepidopterans (both butterflies and moths); and many families of beetles. Vertebrates, mainly bats and birds, but also some non-bat mammals (monkeys, lemurs, possums, rodents) and some lizards pollinate certain plants. Among the pollinating birds are hummingbirds, honeyeaters and sunbirds with long beaks; they pollinate a number of deep-throated flowers. Humans may also carry out artificial pollination. A pollinator is different from a pollenizer, a plant that is a source of pollen for the pollination process. Background Plants fall into pollination syndromes that reflect the type o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Canadian Entomologist
''The Canadian Entomologist'' is a bimonthly peer-reviewed scientific journal covering all aspects of entomology. It is published by Cambridge University Press on behalf of the Entomological Society of Canada and was established in 1868. Volumes 1 to 54 are freely accessible in the Biodiversity Heritage Library. According to the ''Journal Citation Reports'', the journal has a 2020 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 0.878. References External links * Entomology journals and magazines Bimonthly journals Cambridge University Press academic journals English-language journals French-language journals Multilingual journals Publications established in 1868 Academic journals associated with learned and professional societies of Canada ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iris Bracteata
''Iris bracteata'', with common name is Siskiyou iris, is a species of iris. It is endemic to the Klamath Mountains, in Del Norte County, California, and Curry County, Josephine County, and Jackson County, Oregon, in the United States. Its flowers grow singly or paired on a stem, and are usually cream-colored or yellowish with purple or brown veining. External linksCalflora Database: ''Iris bracteata'' (Siskiyou iris) [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Articles Created By Qbugbot
Article often refers to: * Article (grammar), a grammatical element used to indicate definiteness or indefiniteness * Article (publishing), a piece of nonfictional prose that is an independent part of a publication Article may also refer to: Government and law * Article (European Union), articles of treaties of the European Union * Articles of association, the regulations governing a company, used in India, the UK and other countries * Articles of clerkship, the contract accepted to become an articled clerk * Articles of Confederation, the predecessor to the current United States Constitution *Article of Impeachment, a formal document and charge used for impeachment in the United States * Articles of incorporation, for corporations, U.S. equivalent of articles of association * Articles of organization, for limited liability organizations, a U.S. equivalent of articles of association Other uses * Article, an HTML element, delimited by the tags and * Article of clothing, an i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
