Weevils are a type of beetle belonging to the superfamily Curculionoidea. They are usually small, less than 6 mm (0.24 in), and herbivorous. About 97,000 species of weevils are known. They belong to several families, with most of them in the family Curculionidae. Some other beetles, although not closely related, bear the name "weevil", such as the biscuit weevil, which belongs to the family Ptinidae.
The New York weevil is a species of primitive weevil; large for weevils (12–18 mm), it is covered with fine bristles and has a regular pattern of light and dark spots. It occurs in the eastern United States and southern Canada.
Caridae is a small Gondwanan family of weevils. They are considered part of the primitive weevil group, because they have straight rather than 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 ; this proposal has been rejected by most coleopterists (e.g.)
The New Zealand giraffe weevil, Lasiorhynchus barbicornis, is a distinctive straight-snouted weevil in the subfamily Brentinae, endemic to New Zealand. L. barbicornis is New Zealand's longest beetle, and shows extreme sexual dimorphism: males measure up to 90 mm, and females 50 mm, although there is an extreme range of body sizes in both sexes. In males the elongated snout can be nearly as long as the body. Male giraffe weevils use this long rostrum to battle over females, although small males can avoid conflict and 'sneak' in to mate with females, sometimes under the noses of large males. The larval weevils tunnel into wood for at least two years before emerging, and live for only a few weeks as adults.
Gymnopholus is a genus of beetles in the family Curculionidae occurring in New Guinea. Many of them are notable for the growth of algae, diatoms, fungi, lichens and mosses on their backs(especially the subgenus Symbiopholus). The genus is divided into two subgenera and contains the following species:
Exapion fuscirostre is a species of straight-snouted weevil known by the general common name Scotch broom seed weevil. It is used as an agent of biological pest control against the noxious weed known as Scotch broom.
Trigonopterus is a genus of flightless weevils placed in the Cryptorhynchinae of Curculionidae. It is distributed in the area between Sumatra, Samoa, the Philippines, and New Caledonia. About 90 species had been formally described until March 2013, when a single paper more than doubled this number, agreeing with previous studies and a systematic barcoding study that many more species have yet to be described. As of March 2019, there were 444 described species.
Barystethus tropicus is a species of the true weevil family.
Ithystenus wallacei is a species of straight-snouted weevils belonging to the family Brentidae.
Ithystenus is a genus of straight-snouted weevils belonging to the family Brentidae. Species of this genus can be found in Papua New Guinea
Schizoeupsalis promissa is a species of weavil in the Brentidae family. It can be found in New Guinea and neighbouring islands. Beetles of this species present great individual variation.
Cephalobarus macrocephalus is only species in the monotypic genus Cephalobarus of straight-snouted weevils belonging to the family Brentidae. This species is present in South America.
Eutrachelus temmincki is a species of straight-snouted weevils belonging to the family Brentidae.
Eutrachelus is a genus of straight-snouted weevils belonging to the family Brentidae.
Cerobates tristriatus is a species of beetles belonging to the family Brentidae.
Brentus anchorago is a long-snouted weevil, from the family Brentidae It is found from southern Florida to South America.
Cerobates elegans is a species of beetles belonging to the family Brentidae, the straight-snouted weevils. It is found in Africa.
Asytesta doriae is a species of beetles belonging to the family Curculionidae.
Rhinorhynchus is a weevil genus.
