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Bark Beetle
A bark beetle is the common name for the subfamily of beetles Scolytinae. Previously, this was considered a distinct family (Scolytidae), but is now understood to be a specialized clade of the "true weevil" family ( Curculionidae). Although the term "bark beetle" refers to the fact that many species feed in the inner bark (phloem) layer of trees, the subfamily also has many species with other lifestyles, including some that bore into wood, feed in fruit and seeds, or tunnel into herbaceous plants. Well-known species are members of the type genus '' Scolytus'', namely the European elm bark beetle ''S. multistriatus'' and the large elm bark beetle ''S. scolytus'', which like the American elm bark beetle '' Hylurgopinus rufipes'', transmit Dutch elm disease fungi (''Ophiostoma''). The mountain pine beetle ''Dendroctonus ponderosae'', southern pine beetle '' Dendroctonus frontalis'', and their near relatives are major pests of conifer forests in North America. A similarly aggr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Pine Beetle
The mountain pine beetle (''Dendroctonus ponderosae'') is a species of bark beetle native to the forests of western North America from Mexico to central British Columbia. It has a hard black exoskeleton, and measures approximately , about the size of a grain of rice. In western North America, a recent outbreak of the mountain pine beetle and its microbial associates has affected wide areas of lodgepole pine forest, including more than of forest in British Columbia. The outbreak in the Rocky Mountain National Park in Colorado began in 1996 and has caused the destruction of millions of acres/hectares of ponderosa and lodgepole pine trees. At the peak of the outbreak in 2009, over were affected. The outbreak then declined due to better environmental conditions and the fact that many vulnerable trees had been already destroyed. Mountain pine beetles inhabit ponderosa, whitebark, lodgepole, Scots, jack, limber, Rocky Mountain bristlecone, and Great Basin bristlecone pine tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tomicini
Tomicini are a tribe of bark beetles, highly specialized weevils of the subfamily Scolytinae. They belong to the group of tribes around the Hylesinini, which are all included in these by some authors. In this case, the Tomicini become a subtribe Tomicina. This tribe contains a number of notorious pests, in particular of conifers; even by bark beetle standards, some Tomicini are unusually destructive and can cause massive amounts of damage during outbreaks. Some Tomicini have spread from their native range with shipments of forestry produce and established themselves as invasive species. Genera * '' Chaetoptelius'' * '' Dendroctonus'' * '' Dendrotrupes'' * '' Hylurdrectonus'' * '' Hylurgonotus'' * '' Hylurgopinus'' * ''Hylurgus'' * '' Pachycotes'' * ''Pseudohylesinus ''Pseudohylesinus'' is a genus of crenulate bark beetles in the family Curculionidae The Curculionidae are a family of weevils, commonly called snout beetles or true weevils. They are one of the largest ani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dutch Elm Disease
Dutch elm disease (DED) is caused by a member of the sac fungi (Ascomycota) affecting elm trees, and is spread by elm bark beetles. Although believed to be originally native to Asia, the disease was accidentally introduced into America, Europe, and New Zealand. In these regions it has devastated native populations of elms that did not have resistance to the disease. The name "Dutch elm disease" refers to its identification in 1921 and later in the Netherlands by Dutch phytopathologists Bea Schwarz and Christine Buisman, who both worked with professor Johanna Westerdijk. The disease affects species in the genera ''Ulmus'' and ''Zelkova''; therefore it is not specific to the Dutch elm hybrid. Overview Dutch elm disease (DED) is caused by ascomycete microfungi.Ascomycetes: Phylum Ascomycota< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hylurgopinus Rufipes
''Hylurgopinus rufipes'', known as the native elm bark beetle, is a species of elm bark beetles in the tribe Hylesinini (crenulate bark beetles). It is found in Canada and the United States. It is of particular importance as a vector of Dutch elm disease Dutch elm disease (DED) is caused by a member of the sac fungi (Ascomycota) affecting elm trees, and is spread by elm bark beetles. Although believed to be originally native to Asia, the disease was accidentally introduced into America, Europe, .... It is brownish-red in color and its size ranges from 2.34 mm to 2.9 mm. References Beetles of North America Scolytinae {{Scolytinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elm Bark Beetle
Elm bark beetle is a common name for several insects and may refer to: *''Hylurgopinus rufipes'', native to North America *''Scolytus multistriatus'', native to Europe and introduced to North America *''Scolytus schevyrewi ''Scolytus schevyrewi'', the banded elm bark beetle, is a 3–4 mm long elm bark beetle species in the genus ''Scolytus'' native from Asia and accidentally introduced to North America. It is a vector of the Dutch elm disease, caused by the A ...'', native to Asia and introduced to North America {{Animal common name Insect common names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Elm Bark Beetle
''Scolytus multistriatus'', the European elm bark beetle or smaller European elm bark beetle, is a bark beetle species in the genus '' Scolytus''. In Europe, while ''S. multistriatus'' acts as vector of the Dutch elm disease, caused by the Ascomycota ''Ophiostoma ulmi'', it is much less effective than the large elm bark beetle, '' S. scolytus''. ''S. multistriatus'' uses vanillin and syringaldehyde as signals to find a host tree during oviposition.Vanillin and Syringaldehyde as Attractants for ''Scolytus multistriatus'' (Coleoptera: Scolytidae). Meyer H.J. and Norris D.M., Annals of the Entomological Society of America, 17 July 1967, Volume 60, Number 4, pages 858-859,abstract File:01a Scolytus multistriatus Imago 40fach.jpg, female file:01a Scolytus multistriatus Imago 40fach rechte Seite.jpg, female file:01a Scolytus multistriatus Imago 20fach.jpg, female file:01a Scolytus multistriatus Imago 20fach rechte Seite.jpg, female file:04 Scolytus multistriatus Fraßbild.jpg, ''Scol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scolytus
''Scolytus'' is a genus of bark beetles (subfamily Scolytinae). It includes several species notorious for destroying trees in the forests. The Dutch elm disease is spread in North America by two species : the native elm bark beetle, ''Hylurgopinus rufipes'', and the European elm bark beetle, '' Scolytus multistriatus''. In Europe, while the aforementioned '' Scolytus multistriatus'' again acts as vector for infection, it is much less effective than the large elm bark beetle '' Scolytus scolytus''. Species Species include: *'' Scolytus amygdali'' Guerin, 1847, the almond bark beetle *''Scolytus dentatus'' Bright, 1964 *''Scolytus fagi'' Walsh, 1867 *'' Scolytus jacobsoni'' Spessivtzev, 1919 *''Scolytus laricis'' Blackman, 1934, the larch engraver *''Scolytus mali'' ( Bechstein, 1805), the larger shothole borer *'' Scolytus monticolae'' Swaine, 1917 *'' Scolytus multistriatus'' (Marsham, 1802), the European elm bark beetle, smaller European elm bark beetle *'' Scolytus muticus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Genus
In biological taxonomy, the type genus is the genus which defines a biological family and the root of the family name. Zoological nomenclature According to the International Code of Zoological Nomenclature, "The name-bearing type of a nominal family-group taxon is a nominal genus called the 'type genus'; the family-group name is based upon that of the type genus." Any family-group name must have a type genus (and any genus-group name must have a type species, but any species-group name may, but need not, have one or more type specimens). The type genus for a family-group name is also the genus that provided the stem to which was added the ending -idae (for families). :Example: The family name Formicidae has as its type genus the genus '' Formica'' Linnaeus, 1758. Botanical nomenclature In botanical nomenclature, the phrase "type genus" is used, unofficially, as a term of convenience. In the '' ICN'' this phrase has no status. The code uses type specimens for ranks up to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curculionidae
The Curculionidae are a family of weevils, commonly called snout beetles or true weevils. They are one of the largest animal families, with 6,800 genera and 83,000 species described worldwide. They are the sister group to the family Brentidae. They include the bark beetles as the subfamily Scolytinae, which are modified in shape in accordance with their wood-boring lifestyle. They do not much resemble other weevils, so they were traditionally considered a distinct family, Scolytidae. The family also includes the ambrosia beetles, of which the present-day subfamily Platypodinae was formerly considered the distinct family Platypodidae. Description Adult Curculionidae can be recognised by the well-developed, downwards-curved snout (Rostrum (anatomy), rostrum) possessed by many species, though the rostrum is sometimes short (e.g. Entiminae). They have elbowed Antenna (biology), antennae that end in clubs, and the first antennal segment often fits into a groove in the side of the ros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weevil
Weevils are beetles belonging to the superfamily Curculionoidea, known for their elongated snouts. They are usually small, less than in length, and herbivorous. Approximately 97,000 species of weevils are known. They belong to several families, with most of them in the family Curculionidae (the true weevils). It also includes bark beetles, which while morphologically dissimilar to other weevils in lacking the distinctive snout, is a subfamily of Curculionidae. Some other beetles, although not closely related, bear the name "weevil", such as the biscuit weevil (''Stegobium paniceum''), which belongs to the family Ptinidae. Many weevils are considered pests because of their ability to damage and kill crops. The grain or wheat weevil (''Sitophilus granarius'') damages stored grain, as does the maize weevil (''Sitophilus zeamais'') among others. The boll weevil (''Anthonomus grandis'') attacks cotton crops; it lays its eggs inside cotton bolls and the larvae eat their way ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, the equivalent Latin term ''cladus'' (plural ''cladi'') is often used in taxonomical literature. The common ancestor may be an individual, a population, or a species (extinct or extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed monophyletic (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming taxa that are not clades; that is, taxa that are not monophyletic. Some of the relationships between org ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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