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Xyleborini
Xyleborini are a tribe of ambrosia beetles (alternatively called subtribe Xyleborina of tribe Scolytini), highly specialized weevils of the subfamily Scolytinae. Much of the ambrosia beetle fauna in Eurasia and the Americas consists of Xyleborini species. Some Xyleborini are notorious invasive species. Most genera are small or even monotypic, and contain 1-8 dozen species. The type genus '' Xyleborus'' contains over 500 species, but it is an unnatural grouping of species which are not closely related. Key for the world genera of Xyleborini available through a North Carolina State University website. Genera Genera include: * ''Amasa'' Lea 1893 * '' Ambrosiodmus'' Hopkins, 1915 (sometimes included in ''Xyleborus'') * '' Ambrosiophilus'' Hulcr & Cognato 2009 * '' Ancipitis'' * '' Anisandrus'' Ferrari 1867 * '' Arixyleborus'' Hopkins 1915 * '' Beaverium'' Hulcr & Cognato 2009 * '' Cnestus'' Sampson 1911 * '' Coptoborus'' Hopkins, 1915 * '' Coptodryas'' Hopkins 1915 * '' Cryptoxylebo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Ambrosia Beetle
Ambrosia beetles are beetles of the weevil subfamilies Scolytinae and Platypodinae (Coleoptera, Curculionidae), which live in nutritional symbiosis with ambrosia fungi. The beetles excavate tunnels in dead or stressed trees into which they introduce fungal gardens, their sole source of nutrition. After landing on a suitable tree, an ambrosia beetle excavates a tunnel in which it releases its fungal symbiont. The fungus penetrates the plant's xylem tissue, extracts nutrients from it, and concentrates the nutrients on and near the surface of the beetle gallery. Ambrosia fungi are typically poor Wood-decay fungus, wood degraders, and instead utilize less demanding nutrients. Symbiotic fungi produce and detoxify ethanol, which is an attractant for ambrosia beetles and likely prevents growth of Antagonism (phytopathology), antagonistic pathogens and selects for other beneficial symbionts. The majority of ambrosia beetles colonize xylem (sapwood and/or heartwood) of recently dead trees, bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Xyleborus (beetle)
''Xyleborus'' is by far the largest ambrosia beetle genus in the tribe (biology), tribe Xyleborini, with over 500 species.MSU (2004) ''Xyleborus'' nowadays includes a number of formerly independent genera. In addition, the genera ''Coptoborus'', ''Cryptoxyleborus'' and ''Euwallacea'' are often included here, too; this may be correct, as they seem to be closely related. Less often, ''Ambrosiodmus'', ''Premnobius'' and ''Xyleborinus'' are included in ''Xyleborus'', but they seem to be well distinct; ''Premnobius'' might even not belong to the Xyleborini at all. The different species can be best differentiated by the gallery burrows they build and the tree species they infest. A significant member, ''Xyleborus dispar, X. dispar'', causes pear blight. Selected species * ''Xyleborus affinis'' Eichhoff, 1868 * ''Xyleborus atratus'' Eichhoff, 1875 * ''Xyleborus californicus'' Wood, 1975 - may belong in ''Cyclorhipidion'' * ''Xyleborus celsus'' Eichhoff, 1868 * ''Xyleborus cryptograph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Coptodryas
''Coptodryas'' is a genus of ambrosia beetles in the tribe Xyleborini (highly specialized weevils of the subfamily Scolytinae). Species * '' Coptodryas abbreviata'' * '' Coptodryas alpha'' * ''Coptodryas amphicauda'' * ''Coptodryas artegrapha'' * ''Coptodryas atava'' * ''Coptodryas bella'' * '' Coptodryas borneensis'' * ''Coptodryas brunnea'' * ''Coptodryas camela'' * ''Coptodryas chimbui'' * ''Coptodryas chrysophylli'' * ''Coptodryas compta'' * '' Coptodryas confusa'' Hopkins, 1915 * ''Coptodryas corporaali'' * ''Coptodryas costipennis'' * ''Coptodryas curvidentis'' * ''Coptodryas cylindrica'' * ''Coptodryas destricta'' * ''Coptodryas diversicolor'' * ''Coptodryas docta'' * ''Coptodryas elegans'' * ''Coptodryas erinacea'' * ''Coptodryas eucalyptica'' * '' Coptodryas exsculpta'' * ''Coptodryas extensa'' * '' Coptodryas gorontalosa'' * '' Coptodryas huangi'' * '' Coptodryas hylurgoides'' Schedl, 1948 * ''Coptodryas intermedias'' * '' Coptodryas izuens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Xylosandrus Ursa
''Xylosandrus'' is a genus of beetles with approximately 54 species globally. The type species is ''Xyleborus morigerus'' (Blandford) 1894. Selected species * ''Xylosandrus abruptoides'' (Schedl) 1955 * ''Xylosandrus abruptulus'' (Schedl) 1953 * ''Xylosandrus adherescens'' Schedl 1971 * ''Xylosandrus arquatus'' (Sampson) 1912 * ''Xylosandrus assequens'' Schedl 1971 * ''Xylosandrus ater'' (Eggers) 1923 * ''Xylosandrus borealis'' Nobuchi 1981 * ''Xylosandrus brevis'' (Eichhoff) 1877 * ''Xylosandrus butamali'' (Beeson) 1930 * ''Xylosandrus compactus'' (Eichhoff) 1875 * ''Xylosandrus corthyloides'' (Schedl) 1934 * ''Xylosandrus crassiusculus'' (Motschulsky) 1866 * ''Xylosandrus curtulus'' (Eichhoff) 1869 * ''Xylosandrus cylindrotomicus'' (Schedl) 1939 * ''Xylosandrus derupteterminatus'' (Schedl) 1951 * ''Xylosandrus deruptulus'' (Schedl) 1942 * ''Xylosandrus discolor'' (Blandford 1898) * ''Xylosandrus diversepilosus'' (Eggers) 1941 * ''Xylosandrus eupatorii'' (Eggers) 1940 * ''Xylosan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Scolytinae
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 aggre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |