Sluggish Weevil
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Sluggish Weevil
''Cleonis pigra'', the sluggish weevil or large thistle weevil, is a weevil List of weevil (Curculionoidea) species recorded in Britain#Subfamily Lixinae, species recorded in Britain and native to Eurasia. It was introduced into North America to help control creeping thistle. This species develops in the roots of plants in the family Asteraceae. It appears spelled different ways in the literature: ''Cleonis piger, Cleonus piger, Cleonus pigra'', but the correct spelling under ICZN Article 31.2 is ''Cleonis pigra'' It is identified by double V-pattern elytra and a Rostrum (anatomy), rostrum with three Sulcus (anatomy), sulci. References Further reading

* * Lixinae Insects used for control of invasive plants Biological pest control beetles Beetles described in 1763 Taxa named by Giovanni Antonio Scopoli {{Curculionidae-stub ...
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Giovanni Antonio Scopoli
Giovanni Antonio Scopoli (sometimes Latinisation of names, Latinized as Johannes Antonius Scopolius) (3 June 1723 – 8 May 1788) was an Italian physician and natural history, naturalist. His biographer Otto Guglia named him the "first anational European" and the "Carl Linnaeus, Linnaeus of the Austrian Empire". Biography Scopoli was born at Cavalese in the Val di Fiemme, belonging to the Prince-Bishopric of Trent, Bishopric of Trent (today's Trentino), son of Francesco Antonio, military commissioner, and Claudia Caterina Gramola (1699-1791), painter from a patrician family from Trentino. He obtained a degree in medicine at University of Innsbruck, and practiced as a doctor in Cavalese and Venice.Newton, Alfred 1881. ''Scopoli's ornithological papers.'' The Willoughby SocietyScanned version/ref> Much of his time was spent in the Alps, Plant collecting, collecting plants and Entomology, insects, of which he made outstanding collections. He spent two years as private secretary to ...
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Entomologia Carniolica
' is a Taxonomy (biology), taxonomic work by Giovanni Antonio Scopoli, published in Vienna in 1763. As well as describing hundreds of new species, ' contained observations on the species' biology, including the first published account of queen bees mating outside the beehive, hive. Classification In contrast to his predecessors Carl Linnaeus and Johan Christian Fabricius, who had used the structure of the insect wing and the structure of the insect mouthparts, respectively, as the main means of classifying arthropods, Scopoli favoured a more holistic approach. In ', Scopoli described 1153 species of "insects" (a term which at that time included many arthropods), divided into seven orders: :Coleoptera (beetles and orthopteroid insects) – species 1–329 :Proboscidea (= Hemiptera) – species 330–418 :Lepidoptera – species 419–676 :Neuroptera – species 677–712 :Aculeata (= Hymenoptera) – species 713–838 :Halterata (= Fly, Diptera) – species 839–1024 :Pedestria (v ...
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Weevil
Weevils are beetles belonging to the Taxonomic rank, superfamily Curculionoidea, known for their elongated snouts. They are usually small, less than in length, and Herbivore, 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 beetle, 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 Drugstore beetle, 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 cereal, grain, as does the maize weevil (''Sitophilus zeamais'') among others. The boll weevil (''Anthonomus grandis'') attacks cotton crops; it lays its ...
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List Of Weevil (Curculionoidea) Species Recorded In Britain
The following is a list of the weevils recorded in Great Britain. For other beetles, see List of beetle species recorded in Britain. Orthoceri Schönherr, 1823 ;Family Nemonychidae Bedel, 1882 *''Cimberis attelaboides'' (Fabricius, 1787) ;Family Anthribidae Billberg, 1820 *''Anthribus fasciatus'' (Forster, 1771) *''Anthribus nebulosus'' (Forster, 1771) *'' Platyrhinus resinosus'' (Scopoli, 1763) *'' Platystomos albinus'' (Linnaeus, 1758) *'' Enedreytes sepicola'' (Fabricius, 1793) *'' Dissoleucas niveirostris'' (Fabricius, 1798) *'' Choragus sheppardi'' Kirby, 1819 *'' Araecerus fasciculatus'' (De Geer, 1775) *'' Bruchela rufipes'' (Olivier, 1790) ;Family Rhynchitidae Gistel, 1848 *''Involvulus caeruleus'' (De Geer, 1775) *'' Involvulus cupreus'' (Linnaeus, 1758) *'' Lasiorhynchites cavifrons'' (Gyllenhal, 1833) *'' Lasiorhynchites olivaceus'' (Gyllenhal, 1833) *''Neocoenorrhinus aeneovirens'' (Marsham, 1802) *''Neocoenorrhinus aequatus'' (Linnaeus, 1767) *''Neocoenorrhinus german ...
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North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Plate, North American Tectonic Plate, Greenland is included as a part of North America geographically. North America covers an area of about , about 16.5% of Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the list of continents and continental subregions by population, fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in List of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's population. In Americas (terminology)#Human ge ...
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Creeping Thistle
''Cirsium arvense'' is a perennial species of flowering plant in the family Asteraceae, native throughout Europe and western Asia, northern Africa and widely introduced elsewhere.Joint Nature Conservation Committee''Cirsium arvense'' The standard English name in its native area is creeping thistle.Botanical Society of Britain and Irelan It is also commonly known as Canada thistle and field thistle. The plant is beneficial for pollinators that rely on nectar. It also was a top producer of nectar sugar in a 2016 study in Britain, with a second-place ranking due to a production per floral unit of (). Alternative names A number of other names are used in other areas or have been used in the past, including: Canadian thistle, lettuce from hell thistle, California thistle, corn thistle, cursed thistle, field thistle, green thistle, hard thistle, perennial thistle, prickly thistle, setose thistle, small-flowered thistle, way thistle, and stinger-needles. Canada and Canadian thistle a ...
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Asteraceae
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of extant species in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions in a wide variety of habitats. Most occur in hot desert and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more technicall ...
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ICZN
The International Code of Zoological Nomenclature (ICZN) is a widely accepted convention in zoology that rules the formal scientific naming of organisms treated as animals. It is also informally known as the ICZN Code, for its publisher, the International Commission on Zoological Nomenclature (which shares the acronym "ICZN"). The rules principally regulate: * How names are correctly established in the frame of binominal nomenclature * Which name must be used in case of name conflicts * How scientific literature must cite names Zoological nomenclature is independent of other systems of nomenclature, for example botanical nomenclature. This implies that animals can have the same generic names as plants (e.g. there is a genus ''Abronia'' in both animals and plants). The rules and recommendations have one fundamental aim: to provide the maximum universality and continuity in the naming of all animals, except where taxonomic judgment dictates otherwise. The code is meant to guide o ...
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Elytra
An elytron (; ; , ) is a modified, hardened forewing of beetles (Coleoptera), though a few of the true bugs (Hemiptera) such as the family Schizopteridae are extremely similar; in true bugs, the forewings are called hemelytra (sometimes alternatively spelled as "hemielytra"), and in most species only the basal half is thickened while the apex is membranous, but when they are entirely thickened the condition is referred to as "coleopteroid". An elytron is sometimes also referred to as a shard. Description The elytra primarily serve as protective wing-cases for the hindwings underneath, which are used for flying. To fly, a beetle typically opens the elytra and then extends the hindwings, flying while still holding the elytra open, though many beetles in the families Scarabaeidae and Buprestidae can fly with the elytra closed (e.g., most Cetoniinae; ). In a number of groups, the elytra are reduced to various degrees, (e.g., the beetle families Staphylinidae and Ripiphoridae), or ...
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Rostrum (anatomy)
Rostrum (from Latin ', meaning ''beak'') is a term used in anatomy for a number of phylogenetically unrelated structures in different groups of animals. Invertebrates * In crustaceans, the rostrum is the forward extension of the carapace in front of the eyes. It is generally a rigid structure, but can be connected by a hinged joint, as seen in Leptostraca. * Among insects, the rostrum is the name for the piercing mouthparts of the order Hemiptera as well as those of the snow scorpionflies, among many others. The long snout of weevils is also called a rostrum. * Gastropod molluscs have a rostrum or proboscis. * Cephalopod molluscs have hard beak-like mouthparts referred to as the rostrum. File:Washington DC Zoo - Macrobrachium rosenbergii 6.jpg, Crustacean: the rostrum of the shrimp ''Macrobrachium rosenbergii'' is serrated along both edges. File:Gminatus australis with Beetle.jpg, Insect: assassin bug piercing its prey with its rostrum File:Architeuthis beak.jpg, Cephalopod: ...
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Sulcus (anatomy)
In biological morphology and anatomy, a sulcus (pl. ''sulci'') is a furrow or fissure (Latin ''fissura'', plural ''fissurae''). It may be a groove, natural division, deep furrow, elongated cleft, or tear in the surface of a limb or an organ, most notably on the surface of the brain, but also in the lungs, certain muscles (including the heart), as well as in bones, and elsewhere. Many sulci are the product of a surface fold or junction, such as in the gums, where they fold around the neck of the tooth. In invertebrate zoology, a sulcus is a fold, groove, or boundary, especially at the edges of sclerites or between segments. In pollen a grain that is grooved by a sulcus is termed sulcate. Examples in anatomy Liver *Ligamentum teres hepatis fissure *Ligamentum venosum fissure *Portal fissure, found in the under-surface of the liver *Transverse fissure of liver, found in the lower surface of the liver *Umbilical fissure, found in front of the liver Lung *Azygos fissure, of rig ...
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