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Wheat Weevil
The wheat weevil (''Sitophilus granarius''), also known as the grain weevil or granary weevil, is an insect that feeds on cereal grains, and is a common pest in many places. It can cause significant damage to harvested stored grains and may drastically decrease crop yields. The females lay many eggs and the larvae eat the inside of the grain kernels. Identification Adult wheat weevils are about long with elongated snouts and chewing mouth parts. Depending on the grain kernels, the size of the weevil varies. In small grains, such as millet or grain sorghum, they are small in size, but are larger in maize (corn). The adults are a reddish-brown color and lack distinguishing marks. Adult wheat weevils are not capable of flight. Larvae are legless, humpbacked, and are white with a tan head. Weevils in the pupal stage have snouts like the adults. Natural history Life cycle Female wheat weevils lay between 36 and 254 eggs and usually one egg is deposited in each grain kernel. All larv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Des Helmore
Desmond W. Helmore (born 1940) is a New Zealand artist and illustrator, known both for his fine art and for his scientific work depicting insects, not least illustrating the New Zealand Arthropod Collection. One of the country's most noted and prolific biological illustrators, over 1000 of his illustrations of insects were published in research papers from 1976 to 2006. Life and education Helmore was born in Takapau, Hawkes Bay, New Zealand, and lived there on a farm until age 12. Interested in drawing since childhood, he attended Christ's College in Christchurch, and then the Ilam School of Fine Arts at the University of Canterbury from 1959 to 1962, where he was taught by Rudi Gopas, Russell Clark, and Bill Sutton. His fellow students at Ilam included Dick Frizzell, Tony Fomison, and John Panting. In his survey of New Zealand art, Frizzell described Helmore as someone who "seemed to have already graduated from somewhere else. All that quiet abstract pondering. I ri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sitophilus Granarius (Linné, 1758)
The wheat weevil (''Sitophilus granarius''), also known as the grain weevil or granary weevil, is an insect that feeds on cereal grains, and is a common pest in many places. It can cause significant damage to harvested stored grains and may drastically decrease crop yields. The females lay many eggs and the larvae eat the inside of the grain kernels. Identification Adult wheat weevils are about long with elongated snouts and chewing mouth parts. Depending on the grain kernels, the size of the weevil varies. In small grains, such as millet or grain sorghum, they are small in size, but are larger in maize (corn). The adults are a reddish-brown color and lack distinguishing marks. Adult wheat weevils are not capable of flight. Larvae are legless, humpbacked, and are white with a tan head. Weevils in the pupal stage have snouts like the adults. Natural history Life cycle Female wheat weevils lay between 36 and 254 eggs and usually one egg is deposited in each grain kernel. All larv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beetles Of Africa
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 e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beetles Described In 1758
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 exosk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agricultural Pest Insects
A pest is any animal or plant harmful to humans or human concerns. The term is particularly used for creatures that damage crops, livestock, and forestry or cause a nuisance to people, especially in their homes. Humans have modified the environment for their own purposes and are intolerant of other creatures occupying the same space when their activities impact adversely on human objectives. Thus, an elephant is unobjectionable in its natural habitat but a pest when it tramples crops. Some animals are disliked because they bite or sting; snakes, wasps, ants, bed bugs, fleas and ticks belong in this category. Others enter the home; these include houseflies, which land on and contaminate food, beetles, which tunnel into the woodwork, and other animals that scuttle about on the floor at night, like cockroaches, which are often associated with unsanitary conditions. Agricultural and horticultural crops are attacked by a wide variety of pests, the most important being insects, mite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dryophthorinae
Dryophthorinae is a weevil subfamily within the family Curculionidae. While it is not universally accepted as distinct from other curculionid subfamilies, at least one major recent revision elevated it to family rank, as DryophthoridaeAlonso-Zarazaga, M. A. & Lyal, C.H.C. 1999. ''A world catalogue of families and genera of Curculionoidea (Insecta: Coleoptera)'' (Excepting Scolytidae and Platypodidae). Entomopraxis, SCP Edition, Barcelona. Tribes * Cryptodermatini (monotypic) ** ''Cryptoderma'' * Dryophthorini Tribe group "Orthognathinae" * Orthognathini * Rhinostomini (monotypic) ** '' Rhinostomus'' (includes ''Yuccaborus'') Tribe group "Rhynchophorinae" * Diocalandrini (monotypic) ** '' Diocalandra'' * Litosomini ** includes '' Sitophilus'' Schönherr, 1838 * Ommatolampini ** '' Aphiocephalus'' ** '' Cylindrodcyba'' ** '' Lampommatus'' ** '' Ommatolampes'' * Polytini (monotypic) ** '' Polytus'' * Rhynchophorini * Sphenophorini Tribe group "Stromboscerinae" * Strombos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lixus Concavus
''Lixus concavus'', commonly called the rhubarb curculio, is a species of weevil. Rhubarb (''Rheum'' species) is a host, together with dock, sunflower, and thistle. Characteristics ''L. concavus'' has a distinctive long snout and geniculate antennae with small clubs. The beetle is about half an inch in length, black, covered with yellow dust, and hibernates as an adult. Eggs are a yellow-white colour and oblong in shape; the legless larva is a grub, about 3/4 inch in length, with a brown head that usually bears an inverted, Y-shaped mark. Life cycle The adult rhubarb curculio overwinters in leaf litter or other similar sites and appears in mid-May. The adult makes feeding and egg punctures in the crowns, roots, and stalks; a jelly-like sap exudes from the wounds as glistening drops of gum, often with extraneous material trapped within. The eggs laid in rhubarb do not hatch, but are killed by the sap or crushed by the developing tissues. ''Lixus concavus'' is able to complet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maize Weevil
Maize ( ; ''Zea mays'' subsp. ''mays'', from es, maíz after tnq, mahiz), also known as corn (North American and Australian English), is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. The leafy stalk of the plant produces pollen inflorescences (or "tassels") and separate ovuliferous inflorescences called ears that when fertilized yield kernels or seeds, which are fruits. The term ''maize'' is preferred in formal, scientific, and international usage as a common name because it refers specifically to this one grain, unlike ''corn'', which has a complex variety of meanings that vary by context and geographic region. Maize has become a staple food in many parts of the world, with the total production of maize surpassing that of wheat or rice. In addition to being consumed directly by humans (often in the form of masa), maize is also used for corn ethanol, animal feed and other maize products, such as corn starch and corn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rice Weevil
Rice is the seed of the grass species ''Oryza sativa'' (Asian rice) or less commonly ''Oryza glaberrima'' (African rice). The name wild rice is usually used for species of the genera ''Zizania'' and '' Porteresia'', both wild and domesticated, although the term may also be used for primitive or uncultivated varieties of ''Oryza''. As a cereal grain, domesticated rice is the most widely consumed staple food for over half of the world's human population,Abstract, "Rice feeds more than half the world's population." especially in Asia and Africa. It is the agricultural commodity with the third-highest worldwide production, after sugarcane and maize. Since sizable portions of sugarcane and maize crops are used for purposes other than human consumption, rice is the most important food crop with regard to human nutrition and caloric intake, providing more than one-fifth of the calories consumed worldwide by humans. There are many varieties of rice and culinary preferences tend to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Friedrich Wilhelm Herbst
Johann Friedrich Wilhelm Herbst (1 November 1743 – 5 November 1807) was a German naturalist and entomologist from Petershagen, Minden-Ravensberg. He served as a chaplain in the Prussian army. His marriage in Berlin, 1770, with Euphrosyne Luise Sophie (1742–1805), daughter of the Prussian ''Hofrat'' Libert Waldschmidt seems to have been childless. He was the joint editor, with Carl Gustav Jablonsky Carl Gustav Jablonsky (1756 – 25 May 1787) was a Berlin naturalist, entomologist and illustrator. He was also the private secretary to the Queen of Prussia, Elisabeth Christine of Brunswick-Wolfenbüttel-Bevern. He died at the age of 31. He w ...
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Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his Nobility#Ennoblement, ennoblement in 1761 as Carl von Linné#Blunt, Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern Taxonomy (biology), taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierre André Latreille
Pierre André Latreille (; 29 November 1762 – 6 February 1833) was a French zoologist, specialising in arthropods. Having trained as a Roman Catholic priest before the French Revolution, Latreille was imprisoned, and only regained his freedom after recognising a rare beetle species he found in the prison, ''Necrobia ruficollis''. He published his first important work in 1796 (), and was eventually employed by the . His foresighted work on arthropod systematics and taxonomy gained him respect and accolades, including being asked to write the volume on arthropods for George Cuvier's monumental work, , the only part not by Cuvier himself. Latreille was considered the foremost entomologist of his time, and was described by one of his pupils as "the prince of entomologists". Biography Early life Pierre André Latreille was born on 29 November 1762 in the town of Brive, then in the province of Limousin, as the illegitimate child of Jean Joseph Sahuguet d'Amarzit, général baro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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