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Curculionoidea
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 out. ... [...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) possessed by many species, though the rostrum is sometimes short (e.g. Entiminae). They have elbowed antennae that end in clubs, and the first antennal segment often fits into a groove in the side of the rostrum. The body tends to be robus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beetle
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nemonychidae
Nemonychidae is a small family of weevils, placed within the ''primitive weevil'' group because they have straight rather than geniculate (elbowed) antennae. They are often called pine flower weevils. As in the Anthribidae, the labrum appears as a separate segment to the clypeus, and the maxillary palps are long and projecting. Nemonychidae have all ventrites free, while Anthribidae have ventrites 1-4 connate or partially fused. Nemonychidae lack lateral carinae on the pronotum, while these are usually present, though may be short, in Anthribidae. Nemonychidae are historically divided into three subfamilies: Nemonychinae of the palearctic region with the single genus ''Nemonyx'' and an unusual host, the angiosperm ''Delphinium''. Most species of the other two subfamilies are associated with Pinales feeding on the pollen of the male inflorescences. Cimberidinae are found in the Northern hemisphere, while Rhinorhynchinae occur largely in the Southern hemisphere, especially fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pissodes Nemorensis
''Pissodes nemorensis'', known generally as the eastern pine weevil or deodar weevil, is a species of true weevil in the beetle family Curculionidae. It is found in North America and Africa. Deodar weevils are considered a forest pest in the United States, with adults and larvae feeding on a variety of coniferous tree species, including trees such as Deodar cedar (''Cedrus deodara),'' loblolly pine (''Pinus taeda),'' longleaf pine (''Pinus palustris),'' sand pine (''Pinus clausa),'' shortleaf pine (''Pinus echinata),'' slash pine (''Pinus elliottii), and spruce pine (''Pinus glabra)'' Trees of all ages are susceptible to weevil infestations, with trees that are severely stressed by fire, drought, extreme cold, fusiform rust, wind damage, and other problems are prone to weevil infestation. In well managed pine stands, deodar weevil infestations are sporadic, attacking only the suppressed and unhealthy trees throughout the area. Because they do not typically effect healthy trees, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Attelabidae
The Attelabidae is a widespread family of weevils. They are among the primitive weevils, because of their straight antennae, which are inserted near the base of the rostrum. The prothorax is much narrower than the base of the elytra on the abdomen. Attelabidae and the related family Rhynchitidae are known commonly as the leaf-rolling weevils.Legalov, A. A. (2004)New data of the leaf-rolling weevils (Coleoptera: Rhynchitidae, Attelabidae) of the world fauna with description of 35 new taxons.''Baltic Journal of Coleopterology'' 4(1) 63-88. Rhynchitidae may be treated as subfamily Rhynchitinae of the Attelabidae. Some members of this family have long necks and may be called giraffe weevils, particularly '' Trachelophorus giraffa''. A few species are minor agricultural pests. The larvae of Rhynchitinae feed in flower buds, fruits, and terminal shoots, or are leaf miners. The subfamily Attelabinae are the true leaf rollers. The female cuts slits into leaves to deposit her eggs, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthribidae
Anthribidae is a family of beetles also known as fungus weevils. The antennae are not elbowed, may occasionally be longer than the body and thread-like, and can be the longest of any members of Curculionoidea. As in the Nemonychidae, the labrum appears as a separate segment to the clypeus, and the maxillary palps are long and projecting. Most anthribids feed upon fungi or decaying plant matter, and the larvae feed within dead wood. Some species of Choraginae feed upon seeds, a few are stored product pests, and, unusually, ''Anthribus'' feeds upon soft scale insects. Gallery COLE Anthribidae Hoherius meinertzhageni m.png, ''Hoherius meinertzhageni ''Hoherius meinertzhageni'', the ribbonwood fungus weevil, is an endemic New Zealand beetle that has been recorded feeding on the ribbonwood species '' Plagianthus regius'' and '' Plagianthus divaricatus'' and the mountain lacebark, ''Hoheria gla ...'' Toxonotus cornutus P1390275a.jpg, ''Toxonotus cornutus'' Fungus Weevil (Anth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belidae
Belidae is a family of weevils, called belids or primitive weevils because they have straight antennae, unlike the "true weevils" or Curculionidae which have geniculate (elbowed) antennae. They are sometimes known as "cycad weevils", but this properly refers to a few species from the genera '' Parallocorynus'' and ''Rhopalotria''. Distribution The Belidae today have an essentially Gondwanan distribution, occurring only in the Australia–New Guinea–New Zealand region up to Southeast Asia, South and Central America (barely reaching North America), some Pacific islands (notably the Hawaiian Islands) and a few places in Africa. Many lineages of belids are notable for their highly relictual distribution; for example the Aglycyderini are found in two areas on opposite sides of the Earth, with no such beetles known from anywhere in between. Belids were more widespread during the Late Jurassic to Early Cretaceous, about , when they were found at least in Central Asia, Spain and Brazi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caridae
Caridae is a small Gondwanan family of weevils. They are considered part of the primitive weevil group, because they have straight rather than geniculate (elbowed) antennae. The insertion of the antennae on the rostrum cannot be seen from above. Caridae also lack spiracles on abdominal tergites 6 and 7. The prothorax lacks lateral carinae. It has been suggested that the fossil weevil ''Eccoptarthrus'' belongs in this family, which would result in a change in the family name (as "Eccoptarthridae" would have seniority); this proposal has been rejected by most coleopterists (e.g.Kuschel, G. 2003. Nemonychidae, Belidae, Brentidae (Insecta : Coleoptera: Curculionoidea). Fauna of New Zealand 45, 100 pages. ) They are usually found on trees from the Cupressaceae. The genus, '' Car'', has been found on '' Callitris'', and '' Caenominurus'' on '' Austrocedrus'' and ''Pilgerodendron ''Pilgerodendron'' is a genus of conifer belonging to the cypress family Cupressaceae. It has only one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptinidae
Ptinidae is a family of beetles in the superfamily Bostrichoidea. There are at least 220 genera and 2,200 described species in Ptinidae worldwide. The family includes spider beetles and deathwatch beetles. The Ptinidae family species are hard to identify because they are so small, and they have a compact body structure. They also have similar morphologies within the genera and species of the family. There are three main groups in the superfamily Bostrichoidea: Bostrichidae, Anobiidae, and Ptinidae. These have undergone frequent changes in hierarchical classification since their inception. They have been treated as a single family, three independent families, the two families Bostrichidae and Anobiidae, or the two families Bostrichidae and Ptinidae. More recent literature treats these as the two families Bostrichidae and Ptinidae, with Anobiidae a subfamily of Ptinidae ( Anobiinae). Spider beetles are so named because they look like spiders. Some species have long legs, anten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesophyletidae
Mesophyletidae is an extinct family of weevils known from a number of genera preserved in Cretaceous amber. The family was first described as a subfamily in the extant family Caridae, and subsequently raised to family status in 2018. Distribution and paleoecology The family is known exclusively from fossils preserved in Burmese amber, and combined with the Nemonychidae genera, the Burmese amber fauna is considered one of the richest weevil faunas of the Mesozoic, rivaling Kazakhstan's late Jurassic site at Karatau. The Burmese amber fossils preserve more detail than the compression fossils from Karatau. The amber paleoforest was tropical in temperature, and situated along the tidal boundary of a coastal estuary. The resin from which the amber originated is most likely araucarian, based on both inclusions of wood fragments and spectroscopic analysis. Based on the elongated rostrum, antennae, and ovipositor structures; species in mesophyletidae were likely specialized herbiv ... [...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] |
Boll Weevil
The boll weevil (''Anthonomus grandis'') is a beetle that feeds on cotton buds and flowers. Thought to be native to Central Mexico, it migrated into the United States from Mexico in the late 19th century and had infested all U.S. cotton-growing areas by the 1920s, devastating the industry and the people working in the American South. During the late 20th century, it became a serious pest in South America as well. Since 1978, the Boll Weevil Eradication Program in the U.S. allowed full-scale cultivation to resume in many regions. Description The adult insect has a long snout, a grayish color, and is usually less than in length. Lifecycle 1) Back view of adult; 2) side view of adult; 3) egg; 4) side view of larva; 5) ventral view of pupa; 6) adult, with wings spread Adult weevils overwinter in well-drained areas in or near cotton fields, and farms after diapause. They emerge and enter cotton fields from early spring through midsummer, with peak emergence in late spring, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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