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Megascelidini
Megascelidini is a tribe of leaf beetles in the subfamily Eumolpinae. It contains two genera, ''Megascelis ''Megascelis'' is a genus of leaf beetles in the subfamily Eumolpinae. It is known from both North America, North and South America. There are around 140 described species in ''Megascelis''. The genus is traditionally placed in the tribe Megasce ...'' and '' Mariamela'', which are found in the New World. Historically, the group was classified as a separate subfamily. References Beetle tribes Eumolpinae {{Eumolpinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megascelis
''Megascelis'' is a genus of leaf beetles in the subfamily Eumolpinae. It is known from both North America, North and South America. There are around 140 described species in ''Megascelis''. The genus is traditionally placed in the tribe Megascelidini, which was formerly considered a separate subfamily. However, according to Integrated Taxonomic Information System, ITIS, it is now placed in Eumolpini. Nomenclature The generic name "''Megascelis''" first appeared as a ''nomen nudum'' in Pierre François Marie Auguste Dejean, Dejean's Catalogue of Coleoptera in 1821. According to Barber & Bridwell (1940), the name ''Megascelis'' became available in Jacob Sturm, Sturm (1826), where the species ''Megascelis aenea'' is described. This species is considered the type species of the genus. However, according to Tiape Gómez & Savini (2001), the name ''Megascelis'' should instead be attributed to Pierre André Latreille, Latreille (1825), who was the first to give a description of the gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eumolpinae
The Eumolpinae are a subfamily of the leaf beetles, or Chrysomelidae. It is one of the largest subfamilies of leaf beetles, including more than 500 genera and 7000 species. They are oval, and convex in form, and measure up to 10 mm in size. Typical coloration for this subfamily of beetles ranges from bright yellow to dark red. Many species are iridescent or brilliantly metallic blue or green in appearance. Description Eumolpinae can be recognized at first sight by their rounded thoraces, more or less spherical or bell-shaped, but always significantly narrower than the mesothorax as covered by the elytra. Additional features include a small head set deeply into the thorax, and usually well-developed legs. They generally resemble other Chrysomelidae, but differ in having front coxae rounded and third tarsal segment bilobed beneath. Many are metallic, or yellow and spotted. The dogbane beetle ('' Chrysochus auratus''), for instance, is very attractive—iridescent blue-green wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Félicien Chapuis
Félicien Chapuis (29 April 1824 – 30 September 1879) was a Belgian doctor and entomologist. He specialised in Coleoptera Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ... and finished the text of ''Genera des coléoptères'' by Théodore Lacordaire (1801—1870) when Lacordaire died. He wrote: *1874. ''Histoire Naturelle des Insectes. Genera des Coléoptères''. Tome 10. Libraire Encyclopédique de Roret, Paris, 455 pp., pls. 111–124. (Phytophages) *1875. ''Histoire Naturelle des Insectes. Genera des Coléoptères''. Tome 11. Libraire Encyclopédique de Roret, Paris, 420 pp., pls. 125–130. (Phytophages) *1876. ''Histoire Naturelle des Insectes. Genera des Coléoptères''. Tome 12. Libraire Encyclopédique de Roret, Paris, 424 pp., pls. 131–134. (Érotyliens. Endomychides, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genera
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Beetle
The insects of the beetle family Chrysomelidae are commonly known as leaf beetles, and include over 37,000 (and probably at least 50,000) species in more than 2,500 genera, making up one of the largest and most commonly encountered of all beetle families. Numerous subfamilies are recognized, but the precise taxonomy and systematics are likely to change with ongoing research. Leaf beetles are partially recognizable by their tarsal formula, which appears to be 4-4-4, but is actually 5-5-5 as the fourth tarsal segment is very small and hidden by the third. As with many taxa, no single character defines the Chrysomelidae; instead, the family is delineated by a set of characters. Some lineages are only distinguished with difficulty from longhorn beetles (family Cerambycidae), namely by the antennae not arising from frontal tubercles. Adult and larval leaf beetles feed on all sorts of plant tissue, and all species are fully herbivorous. Many are serious pests of cultivated plants, fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New World
The term ''New World'' is often used to mean the majority of Earth's Western Hemisphere, specifically the Americas."America." ''The Oxford Companion to the English Language'' (). McArthur, Tom, ed., 1992. New York: Oxford University Press, p. 33: "[16c: from the feminine of ''Americus'', the Latinized first name of the explorer Amerigo Vespucci (1454–1512). The name ''America'' first appeared on a map in 1507 by the German cartographer Martin Waldseemüller, referring to the area now called Brazil]. Since the 16c, a name of the western hemisphere, often in the plural ''Americas'' and more or less synonymous with ''the New World''. Since the 18c, a name of the United States of America. The second sense is now primary in English: ... However, the term is open to uncertainties: ..." The term gained prominence in the early 16th century, during Europe's Age of Discovery, shortly after the Italian explorer Amerigo Vespucci concluded that America (now often called ''th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beetle Tribes
Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 described species, is the largest of all orders, constituting almost 40% of described insects and 25% of all known animal life-forms; new species are discovered frequently, with estimates suggesting that there are between 0.9 and 2.1 million total species. Found in almost every habitat except the sea and the polar regions, they interact with their ecosystems in several ways: beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are serious agricultural pests, such as the Colorado potato beetle, while others such as Coccinellidae (ladybirds or ladybugs) eat aphids, scale insects, thrips, and other plant-sucking insects that damage crops. Beetles typically have a particularly hard exoske ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
