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Adelgid
The Adelgidae are a small family of the Hemiptera closely related to the aphids, and often included in the Aphidoidea with the Phylloxeridae or placed within the superfamily Phylloxeroidea as a sister of the Aphidoidea within the infraorder Aphidomorpha. The family is composed of species associated with pine, spruce, or other conifers, known respectively as "pine aphids" or "spruce aphids". This family includes the former family Chermesidae, or "Chermidae", the name of which was declared invalid by the ICZN in 1955. There is still considerable debate as to the number of genera within the family, and the classification is still unstable and inconsistent among competing authors. There are about fifty species of adelgids known. All of them are native to the northern hemisphere, although some have been introduced to the southern hemisphere as invasive species. Unlike aphids, the adelgids have no tail-like cauda and no cornicles.''Bugs of the World'', George C. McGumoFacts on File, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemlock Woolly Adelgid
The hemlock woolly adelgid (; ''Adelges tsugae''), or HWA, is an insect of the order Hemiptera (true bugs) native to East Asia. It feeds by sucking sap from hemlock and spruce trees (''Tsuga'' spp.; ''Picea'' spp.). In its native range, HWA is not a serious pest because populations are managed by natural predators and parasitoids and by host resistance. In eastern North America it is a destructive pest that threatens the eastern hemlock (''Tsuga canadensis'') and the Carolina hemlock (''Tsuga caroliniana''). HWA is also found in western North America, where it has likely been present for thousands of years. In western North America, it primarily attacks western hemlock ''Tsuga heterophylla'' and has only caused minor damage due to natural predators and host resistance. Accidentally introduced to North America from Japan, HWA was first found in the eastern United States near Richmond, Virginia, in 1951. The pest is now found from northern Georgia to coastal Maine and southwest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adelgidae
The Adelgidae are a small family of the Hemiptera closely related to the aphids, and often included in the Aphidoidea with the Phylloxeridae or placed within the superfamily Phylloxeroidea as a sister of the Aphidoidea within the infraorder Aphidomorpha. The family is composed of species associated with pine, spruce, or other conifers, known respectively as "pine aphids" or "spruce aphids". This family includes the former family Chermesidae, or "Chermidae", the name of which was declared invalid by the International Commission on Zoological Nomenclature, ICZN in 1955. There is still considerable debate as to the number of genera within the family, and the classification is still unstable and inconsistent among competing authors. There are about fifty species of adelgids known. All of them are native to the northern hemisphere, although some have been introduced to the southern hemisphere as invasive species. Unlike aphids, the adelgids have no tail-like Cauda (other), c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphid
Aphids are small sap-sucking insects and members of the superfamily Aphidoidea. 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, coloni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gall Adelgid
The gall adelgid (''Adelges cooleyi'') is an adelgid species that produces galls in spruce trees. They infect the new buds of native spruce trees in the foothills of the Rocky Mountains in the spring. They also attack blue spruce to a lesser degree. The insects complete two generations within the year. They require two different trees for its life cycle, the second being the Rocky Mountain Douglas-fir. They may also attack Sitka, Engelmann, or white spruce. The many different species of adelgids produce different galls on different spruce species. The Cooley spruce gall adelgid (''Adelges cooleyi'' Gillette) is mainly a western species that usually alternates between white spruce and Douglas fir. It is rare in eastern Canada. In Ontario, the galls are found mostly on Colorado spruce. Identification The infection is most noticeable on Cooley spruce in the spring, May to June, when the galls appear. This infection may be mistakenly diagnosed to be caused by worms, grubs, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pineapple Gall Adelgid
The Pineapple gall adelgid (''Adelges abietis'') is a type of conifer-feeding insect that forms pineapple-shaped plant galls on its host species, commonly Norway spruce, Norway and Sitka spruce. The adelgids (genus ''Adelges'') are pear-shaped, soft-bodied green insects with long antennae, closely related to the aphid. ''Adelges'' lays up to one hundred eggs at a time, one on each needle. ''Adelges abietis'' (Linnaeus, 1758) is one of the most common species; synonyms are ''A. gallarum-abietis'', ''Chermes abietis'' and ''Sacciphantes abietis''. The pineapple or pseudocone gallDarlington, Arnold (1975) ''The Pocket Encyclopaedia of Plant Galls in Colour.'' Pub. Blandford Press. Poole. . P. 114. is a type of insect-formed gall, or abnormal outgrowth of plant tissue, that develops as a chemically induced distortion of needles, observed mostly on Norway spruce and Sitka spruce. Terminology and distribution Prominent in appearance, the pineapple or pseudocone gall is often confused ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adelges Abietis
The Pineapple gall adelgid (''Adelges abietis'') is a type of conifer-feeding insect that forms pineapple-shaped plant galls on its host species, commonly Norway spruce, Norway and Sitka spruce. The adelgids (genus ''Adelges'') are pear-shaped, soft-bodied green insects with long antennae, closely related to the aphid. ''Adelges'' lays up to one hundred eggs at a time, one on each needle. ''Adelges abietis'' (Linnaeus, 1758) is one of the most common species; synonyms are ''A. gallarum-abietis'', ''Chermes abietis'' and ''Sacciphantes abietis''. The pineapple or pseudocone gallDarlington, Arnold (1975) ''The Pocket Encyclopaedia of Plant Galls in Colour.'' Pub. Blandford Press. Poole. . P. 114. is a type of insect-formed gall, or abnormal outgrowth of plant tissue, that develops as a chemically induced distortion of needles, observed mostly on Norway spruce and Sitka spruce. Terminology and distribution Prominent in appearance, the pineapple or pseudocone gall is often confused ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylloxeridae
Phylloxeridae is a small family of plant-parasitic hemipterans closely related to aphids with only 75 described species. This group comprises two subfamilies (Phylloxerininae and Phylloxerinae) and 11 genera with one that is fossil. The genus type is ''Phylloxera''. The Phylloxeridae species are usually called phylloxerans or phylloxerids. History and distribution The first record of species of the family was in Aphidoidea by Latreille, 1802. In 1857 Herrich-Schaeffer described the family and named this group 'Phylloxeriden'. Lichtenstein was the first to use the word 'Phylloxeridae' in 1883. They have a worldwide distribution but seem to have originated from a moderate climate since they are more diverse in temperate climates and their adaptation to tropical life probably is of a secondary nature. Behavior and ecology Phylloxerans are aphid-like insects that are parasitic hemipterans on deciduous trees and perennial fruit crops. They feed on leaves and roots and are cecid ... [...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 {{Sternorrhyncha-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adelges
''Adelges'' is a genus of insects which feed on conifers. Excepting galls formed by the spruce gall midge, galls are caused by aphid-like insects of the superfamily Phylloxeroidea (family Adelgidae) commonly known as the spruce gall adelgids. They have complex life cycles, some species feeding exclusively on spruce, others feeding on spruce and an alternate conifer. However, galls characteristic of each species are formed only on spruce. Six generations are usually needed to complete the 2-year cycle, and in the case of species having an alternate host, winged adults about 2 mm long are formed only in the generations that move from one host to the other. The spruce gall adelgid (''Adelges lariciatus'' Patch) occurs in alternate years on spruce and larch from Alberta to the Maritimes and in adjacent parts of the United States. The pale spruce gall adelgid (''Adelges strobilobius'' Kaltenbach) has a similar range but prefers black spruce or red spruce to white spruce. Species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sacchiphantes
''Sacchiphantes'' is a genus of true bugs belonging to the family Adelgidae. Species: * ''Sacchiphantes abietis'' * ''Sacchiphantes segregis'' * ''Sacchiphantes viridis ''Sacchiphantes'' is a genus of true bugs belonging to the family Adelgidae. Species: * ''Sacchiphantes abietis'' * ''Sacchiphantes segregis ''Sacchiphantes'' is a genus of true bugs belonging to the family Adelgidae. Species: * ''Sacchipha ...'' References {{Taxonbar, from=Q10659874 Adelgidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dreyfusia
''Dreyfusia'' is a genus of true bugs belonging to the family Adelgidae. Species: * ''Dreyfusia merkeri'' * ''Dreyfusia nebrodensis'' * ''Dreyfusia nordmannianae'' * ''Dreyfusia piceae'' * ''Dreyfusia prelli ''Dreyfusia'' is a genus of true bugs belonging to the family Adelgidae. Species: * ''Dreyfusia merkeri'' * ''Dreyfusia nebrodensis'' * ''Dreyfusia nordmannianae'' * ''Dreyfusia piceae ''Dreyfusia'' is a genus of true bugs belonging to the f ...'' References {{Taxonbar, from=Q10476828 Adelgidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphrastasia
''Aphrastasia'' is a genus of true bugs belonging to the family Adelgidae. The genus is monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ..., with the only species being ''Aphrastasia funitecta''. The genus was first described by Börner in 1909. References {{Taxonbar, from=Q10415438 Adelgidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
