Weevil
Acorn Weevil Curculio Species
Scientific classification
Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Coleoptera Suborder: Polyphaga Infraorder: Cucujiformia Superfamily: Curculionoidea Latreille, 1802
Families
Anthribidae - fungus weevils Attelabidae - leaf rolling weevils Belidae - primitive weevils Brentidae - straight snout weevils Caridae Curculionidae - true weevils Nemonychidae - pine flower weevils Image File history File links Size of this preview: 711 × 600 pixel Image in higher resolution (1024 × 864 pixel, file size: 126 KB, MIME type: image/jpeg) Other versions DCP_23887. ... Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ... Digimon, the only known animals. ... Subphyla and Classes Subphylum Trilobitomorpha Trilobita - trilobites (extinct) Subphylum Chelicerata Arachnida - spiders,scorpions, etc. ... Orders See taxonomy Insects (Class Insecta) are a major group of arthropods and the most diverse group of animals on the Earth, with over a million described species—more than all other animal groups combined. ... Suborders Adephaga Archostemata Myxophaga Polyphaga See subgroups of the order Coleoptera Beetles are the most diverse group of insects. ... Infraorders Bostrichiformia Cucujiformia Elateriformia Scarabaeiformia Staphyliniformia The Polyphagans are the biggest and most diverse suborder of beetles. ... Polyphaga Infraorder Categories: Stub | Beetles ... Pierre André Latreille. ... In biological classification, family (Latin: familia, plural familiae) is 1) a rank or 2) a taxon in that rank. ... Subfamily Anthribinae Choraginae Urodontinae Wikispecies has information related to: Anthribidae Anthribidae is a family of beetles also known as fungus weevils. ... Subfamilies Attelabinae - leaf-rolling weevils Euscelinae Hybolabinae Pilolabinae Pterocolinae Rhynchitinae - tooth-nosed snout weevils The Attelabidae or leaf-rolling weevils are a widespread family of weevils. ... Subfamilies Aglycyderinae Belinae Oxycoryninae Belidae is the family called primitive weevils, though all the families of Curculionoidea aside from Curculionidae can be considered primitive weevils (to distinguish them from the true weevils); basically, any weevil whose antennae are not elbowed is primitive. The three subfamilies have each, at various times... subfamilies Antliarhininae Apioninae Brentinae Cyladinae Cyphagoginae Eurhynchinae Nanophyinae Trachelizinae Brentidae is a cosmopolitan family of primarily xylophagous beetles also known as straight-snouted weevils. ... Caridae is a [family (biology)|family]] of beetles. ... Subgroups See Subgroups of Curculionidae. ...

Wikispecies has information related to:

Curculionoidea

A weevil is any beetle from the Curculionoidea superfamily. They are usually small, less than 6 mm (¼ inch), and herbivorous. Due to the shape of their heads, weevils are commonly known as snout beetles. There are over 60,000 species in several families, mostly in the family Curculionidae (the true weevils). Some other beetles, although not closely related, bear the name "weevil", such as the biscuit weevil (Stegobium paniceum) which belongs to the family Anobiidae. GFDL Wikispecies logo File links The following pages link to this file: Solanaceae Species Asterias Homo (genus) Human Wikipedia:Template messages/Links Wikipedia:Template messages/All Homo floresiensis User talk:Tuneguru Template:Wikispecies Categories: GFDL images ... Wikispecies is a sister project supported by the Wikimedia Foundation that anybody can edit with a great potential use to students and researchers. ... Suborders Adephaga Archostemata Myxophaga Polyphaga See subgroups of the order Coleoptera Beetles are the most diverse group of insects. ... In biology, a superfamily is a taxonomic grade intermediate between suborder and family. ... A millimetre (American spelling: millimeter, symbol mm) is an SI unit of length that is equal to one thousandth of a metre. ... An inch (plural: inches; symbol or abbreviation: in or, sometimes, ″ - a double prime) is the name of a unit of length in a number of different systems, including English units, Imperial units, and United States customary units. ... A deer and two fawns feeding on some foliage A herbivore is often defined as any organism that eats only plants[1]. By that definition, many fungi, some bacteria, many animals, about 1% of flowering plants and some protists can be considered herbivores. ... Subgroups See Subgroups of Curculionidae. ... Subgroups See Subgroups of Curculionidae. ... Binomial name Stegobium paniceum Linnaeus, 1758 The Drugstore beetle (Stegobium paniceum) is a tiny, brown beetle that can be found infesting a wide variety of products, and are among the commonest non-weevils to be found there. ... Genera See text. ...

Many weevils are damaging to crops. The grain or wheat weevil (Sitophilus granarius) damages stored grain. The boll weevil (Anthonomus grandis) attacks cotton crops. It lays its eggs inside unripe cotton bolls, and the young weevils eat their way out. Zyzzyva is a genus of tropical American weevils. Binomial name Sitophilus granarius A wheat weevil (Sitophilus granarius) is a weevil that damages stored grain. ... This article is about cereals in general. ... Binomial name Anthonomus grandis Boheman, 1843 Wikispecies has information related to: Boll weevil The boll weevil (Anthonomus grandis) is a beetle measuring an average length of six millimeters (¼ inch). ... Cotton ready for harvest. ... Species See text. ...

Weevils are most likely to be observed in a domestic setting when opening a bag of flour although they will happily infest most types of grain including oats, barley and breakfast cereals. If ingested, E. coli infection and other various diseases can be contracted from weevils, depending on their diet. E. coli redirects here. ...

Taxonomy

Because there are so many species and such diversity, the higher classification of weevils is in a state of flux. Weevils are generally divided into two major divisions, the Orthoceri or primitive weevils, and the Gonatoceri or true weevils (Curculionidae). Zimmerman (1994) proposed a third division, the Heteromorphi, for several intermediate forms. Primitive weevils are distinguished by having straight antennae, while true weevils have elbowed (geniculate) antennae. The elbow occurs at the end of the scape (first antennal segment) in true weevils, and the scape is usually much longer than the other antennal segments. Some exceptions occur. Nanophyini are primitive weevils (with very long trochanters) but have long scapes and geniculate antennae. From the true weevils, Gonipterinae and Ramphus have short scapes and little or no elbow. Subgroups See Subgroups of Curculionidae. ... For other uses, see Antenna. ... An insect leg The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. ... Genera several, including: Gonipterus Gonipterinae is a subfamily of weevils. ...

The most recent classification system to family level was provided by Kuschel (1995), with updates from Marvaldi et al. (2002), and was achieved using phylogenetic analyses. The accepted families are the primitive weevils, Anthribidae, Attelabidae, Belidae, Brentidae, Caridae and Nemonychidae, and the true weevils Curculionidae. Most other weevil families were demoted to subfamilies or tribes. Weevil species radiation was shown to follow steps in plant evolution upon which the weevils feed. A phylogeny (or phylogenesis) is the origin and evolution of a set of organisms, usually of a species. ...

Some of the features used to distinguish weevil families are:
Labrum visible as separate segment to clypeus – Anthribidae, Nemonychidae
Antennae elbowed – most Curculionidae, Nanophyini of Apioninae
Trochanters (segment between coxae and femora) as long or longer than coxae – Apioninae including Nanophyini
Fore tibia with comb of setae in apical groove opposite tarsal articulation - Belidae
Elytra striate (with longitudinal ridges or grooves) – Brentidae, Curculionidae, Rhinorhynchinae
Rostrum short and broad – Anthribidae, some Curculionidae (some Brachycerinae including Ithycerus (New York Weevil), Scolytinae and Platypodinae).
Maxillary palps long and projecting (visible from above at tip of rostrum). – Anthribidae, Nemonychidae
Abdominal tergites 6 and 7 without spiracles - Caridae.
Gular suture (on ventral part of head) single not double – Attelabidae, Brentidae, Curculionidae.

Phylogeny

A phylogeny of the Curculionoidea based on 18S ribosomal DNA and morphological data is suggested below:^[1] In biology, phylogenetics (Greek: phylon = tribe, race and genetikos = relative to birth, from genesis = birth) is the study of evolutionary relatedness among various groups of organisms (e. ... Ribosomal DNA (rDNA) are sequences encoding ribosomal RNA. These sequences regulate amplification and transcription initiation and contain transcribed and nontranscribed spacer segments. ...

Trivia

• In the episode Evil Weevil of Courage the Cowardly Dog a weevil works as the butler for the Bagges, but actually wanted to suck Muriel and Eustace's blood.
• In the movie Master and Commander: The Far Side of the World captain Jack Aubrey (played by Russel Crowe) makes a joke about "choosing the lesser of two weevils".

Evil Weevil is a Courage the Cowardly Dog season 2 episode featuring an evil, blood-sucking weevil who gets into the Bagge farm. ... Courage the Cowardly Dog is an American animated television series about a dog named Courage and his owners Muriel Bagg, a kindly old Scottish woman, and Eustace Bagg, a grumpy old farmer, living together in a farmhouse in the middle of the town of Nowhere, Kansas (often described as The... Master and Commander: The Far Side of the World Master and Commander: The Far Side of the World is a 2003 film directed by Peter Weir and starring Russell Crowe as Jack Aubrey, with Paul Bettany as Stephen Maturin. ... Russell Ira Crowe (born April 7, 1964) is a film actor born in Wellington, New Zealand. ...

References

Kuschel, G. (1995). A phylogenetic classification of Curculionoidea to families and subfamilies. Memoir Entomol. Soc. Washington 14: 5-33.
Marvaldi, A.E., Sequeira, A.S., O’Brien, C.W. and Farrell, B.D. (2002). Molecular and morphological phylogenetics of weevils (Coleoptera, Curculionoidea): Do niche shifts accompany diversification? Systematic Biology 51: 761-785.
Zimmerman, E.C. (1994). Australian Weevils (Coleoptera: Curculionoidea). Volume 1. Orthoceri: Anthribidae to Attelabidae: The Primitive Weevils. CSIRO, East Melbourne, 741 pp.

Gallery

A weevil of the Belidae family on parsley flowers Image File history File links Weevil Underwood from Yu-Gi-Oh! File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...

A weevil from India Image File history File linksMetadata Download high resolution version (910x588, 128 KB) Summary Weevil from Bangalore. ...

An Attelabid weevil from India Image File history File links No higher resolution available. ...

Wikimedia Commons has media related to:

Attelabidae

Wikimedia Commons has media related to:

Anthribidae

Wikimedia Commons has media related to:

Brentidae

Wikimedia Commons has media related to:

Curculionidae