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Sternorrhyncha Genera
The Sternorrhyncha suborder of the Hemiptera contains the aphids, whitefly, whiteflies, and scale insects, groups which were traditionally included in the now-obsolete order "Homoptera". The name "Sternorrhyncha" refers to the rearward position of the mouthparts relative to the head. Distributed worldwide, all members of this group are herbivore, plant-feeders, many considered Pest (organism), pests feeding on cash crop, major crops and ornamental plants. Many exhibit modified Morphology (biology), morphology and/or Biological life cycle, life cycles, including phenomena such as flightless morphs, parthenogenesis, sexual dimorphism, and eusociality. Phylogeny The phylogeny of the extant Sternorrhyncha, inferred from analysis of small subunit (18S) ribosomal RNA, is shown in the cladogram. The evolutionary position of several fossil taxa are unclear. A suggested phylogeny is: Groups Well-known groups in the Sternorrhyncha include: * aphids – (Aphididae) * woolly and gall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Dimorphism
Sexual dimorphism is the condition where sexes of the same species exhibit different Morphology (biology), morphological characteristics, including characteristics not directly involved in reproduction. The condition occurs in most dioecy, dioecious species, which consist of most animals and some plants. Differences may include secondary sex characteristics, size, weight, color, markings, or behavioral or cognitive traits. Male-male reproductive competition has evolved a diverse array of sexually dimorphic traits. Aggressive utility traits such as "battle" teeth and blunt heads reinforced as battering rams are used as weapons in aggressive interactions between rivals. Passive displays such as ornamental feathering or song-calling have also evolved mainly through sexual selection. These differences may be subtle or exaggerated and may be subjected to sexual selection and natural selection. The opposite of dimorphism is ''monomorphism'', when both biological sexes are phenotype, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphid Icon
Aphids are small sap-sucking insects in the family Aphididae. Common names include greenfly and blackfly, although individuals within a species can vary widely in color. The group includes the fluffy white woolly aphids. A typical life cycle involves flightless females giving live birth to female nymphs—who may also be already pregnant, an adaptation scientists call telescoping generations—without the involvement of males. Maturing rapidly, females breed profusely so that the number of these insects multiplies quickly. Winged females may develop later in the season, allowing the insects to colonize new plants. In temperate regions, a phase of sexual reproduction occurs in the autumn, with the insects often overwintering as eggs. The life cycle of some species involves an alternation between two species of host plants, for example between an annual crop and a woody plant. Some species feed on only one type of plant, while others are generalists, colonizing many plant grou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphididae
The Aphididae are a very large insect family in the aphid superfamily ( Aphidoidea), of the order Hemiptera. These insects suck the sap from plant leaves. Several thousand species are placed in this family, many of which are considered plant/crop pests. They are the family of insects containing most plant virus vectors (around 200 known) with the green peach aphid ('' Myzus persicae'') being one of the most prevalent and indiscriminate carriers. Evolution Aphids originated in the late Cretaceous about (Mya), but the Aphidinae which comprises about half of the 4700 described species and genera of aphids alive today come from their most recent radiation which occurred in the late Tertiary less than 10 Mya.Von Dohlen CD, Moran NA (2000) Molecular data support a rapid radiation of aphids in the Cretaceous and multiple origins of host alternation. Biol J Linnean Soc 71: 689–717Von Dohlen CD, Rowe CA, Heie OE (2006) A test of morphological hypotheses for tribal and subtribal rela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daktulosphaira Vitifoliae From CSIRO
Grape phylloxera is an insect pest of grapevines worldwide, originally native to eastern North America. Grape phylloxera (''Daktulosphaira vitifoliae'' (Fitch 1855) belongs to the family Phylloxeridae, within the order Hemiptera, bugs); originally described in France as ''Phylloxera vastatrix''; equated to the previously described ''Daktulosphaera vitifoliae'', ''Phylloxera vitifoliae''. The insect is commonly just called phylloxera (; from , leaf, and , dry). These almost microscopic, pale yellow sap-sucking insects, related to aphids, feed on the roots and leaves of grapevines (depending on the phylloxera genetic strain). On ''Vitis vinifera'', the resulting deformations on roots ("nodosities" and "tuberosities") and secondary fungal infections can girdle roots, gradually cutting off the flow of nutrients and water to the vine.Wine & Spirits Education Trust ''"Wine and Spirits: Understanding Wine Quality"'' pgs 2–5, Second Revised Edition (2012), London, Nymphs also form pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphidomorpha
Aphidomorpha is an infraorder within the insect order Sternorrhyncha which includes the aphids and their allies in the superfamilies Adelgoidea, Phylloxeroidea The PhylloxeroideaHerrich-Schaeffer (1854) In Koch. ''Vorwort des Herausgebers. Die Pflanzenläuse Aphiden getreu nach dem Leben abgebildet und beschrieben, Verlag von J. L. Lotzbeck, Nürnberg'' 1:III-VIII is a small superfamily of the Hemiptera ... and Aphidoidea. This group also includes numerous fossil taxa of uncertain placement, such as these other superfamilies Triassoaphidoidea, Genaphidoidea, Palaeoaphidoidea, and Tajmyraphidoidea. The treatment of the members in the group varies and the following variant treatments of the extant families can be found in literature. References External links Aphid species file Sternorrhyncha Insect infraorders {{Sternorrhyncha-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HEMI Margarodidae Coelostomidia Wairoensis M
Hemi may refer to: People Surname * Jack Hemi (1914–1996), New Zealand freezing worker, rugby union and league player, shearer * Ronald Hemi (1933–2000), New Zealand rugby union player Given name * Hemi Bawa, Indian painter and sculptor * Hemi Baxter, or James K. Baxter * Hemi Doron (born 1956), Israeli politician * Hēmi Pītiti Huata (1860s–1954), New Zealand tribal leader and Anglican clergyman * Hemi Pomara (born 1830), Māori chief * Hēmi Pōtatau (1904–1994), New Zealand Presbyterian minister, soldier, writer * Hemi Taylor (born 1963), Wales rugby union player * Hēmi Tōpine Te Mamaku ( died 1887), Māori chief Places * Hemi Station, Japan Vehicles * Hemispherical combustion chamber ** Donovan hemi, an engine of this type ** Chrysler Hemi engine, an engine of this type ** Dodge Super 8 Hemi, a car with the Chrysler Hemi engine Other * hemi, prefix meaning "half" * Hemi group, involved in Illinois v. Hemi Group LLC * Hemi Naga, one of the Naga eth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neomaskellia Bergii From CSIRO
Aleyrodidae is a large hemipteran family comprising the whiteflies. It contains the following species: Aleyrodinae Westwood, 1840 *'' Acanthaleyrodes'' Takahashi, 1931 :*'' Acanthaleyrodes callicarpae'' Takahashi, 1931 :*'' Acanthaleyrodes styraci'' Takahashi, 1942 *'' Acanthobemisia'' Takahashi, 1935 :*'' Acanthobemisia distylii'' Takahashi, 1935 :*'' Acanthobemisia indicus'' Meganathan & David, 1994 *'' Acaudaleyrodes'' Takahashi, 1951 :*'' Acaudaleyrodes africanus'' Dozier, 1934 :*'' Acaudaleyrodes ebeni'' Manzari & Alemansoor, 2005 :*'' Acaudaleyrodes pauliani'' Takahashi, 1951 :*'' Acaudaleyrodes rachipora'' Singh, 1931 :*'' Acaudaleyrodes tuberculata'' Bink-Moenen, 1983 *''Acutaleyrodes'' Takahashi, 1960 :*'' Acutaleyrodes palmae'' Takahashi, 1960 *'' Africaleurodes'' Dozier, 1934 :*'' Africaleurodes adami'' Cohic, 1968 :*'' Africaleurodes ananthakrishnani'' Dubey & Sundararaj, 2006 :*'' Africaleurodes balachowskyi'' Cohic, 1968 :*'' Africaleurodes capgrasi'' Cohic, 1968 :*'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladogram
A cladogram (from Greek language, Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an Phylogenetic tree, evolutionary tree because it does not show how ancestors are related to descendants, nor does it show how much they have changed, so many differing evolutionary trees can be consistent with the same cladogram. A cladogram uses lines that branch off in different directions ending at a clade, a group of organisms with a last common ancestor. There are many shapes of cladograms but they all have lines that branch off from other lines. The lines can be traced back to where they branch off. These branching off points represent a hypothetical ancestor (not an actual entity) which can be inferred to exhibit the traits shared among the terminal taxa above it. This hypothetical ancestor might then provide clues about the order of evolution of various features, adaptation, and other e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
