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The Curculionidae are the family of the "true" weevils. They are one of the largest animal families, with 6,800 genera and 83,000 species described worldwide.
Weevils are beetles belonging to the superfamily Curculionoidea, known for their elongated snouts. They are usually small, less than 6 mm in length, 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.
Nemonychidae is a small family of weevils, placed within the primitive weevil group because they have straight rather than 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.
The tooth-nosed snout weevils, Rhynchitidae, are small beetles that are usually found vegetation. They usually use buds, fruits, or seeds for oviposition. The tooth-nosed snout weevils receive this name due to the teeth on the edges of their mandibles.
The Entiminae are a large subfamily in the weevil family Curculionidae, containing most of the short-nosed weevils, including such genera as Otiorhynchus, Phyllobius, and Sitona. Some of these weevils are notorious pests of major economic importance.
The Blosyrini comprise a weevil tribe in the subfamily Entiminae.
The Celeuthetini are a weevil tribe in the subfamily Entiminae.
The Cneorhinini are a weevil tribe in the subfamily Entiminae.
Ectemnorhinini is a weevil tribe in the subfamily Entiminae.
Episomini is a weevil tribe in the subfamily Entiminae.
Eustylini is a weevil tribe in the subfamily Entiminae.
Laparocerini is a weevil tribe in the subfamily Entiminae.
Leptostethini is a weevil tribe in the subfamily Entiminae.
Ophryastini is a weevil tribe in the subfamily Entiminae.
Peritelini is a weevil tribe in the subfamily Entiminae.
Prypnini is a weevil tribe in the subfamily Entiminae.
Psallidiini is a weevil tribe in the subfamily Entiminae.
Thecesternini is a weevil tribe in the subfamily Entiminae.
Hyperini is a tribe of true weevils in the subfamily Hyperinae.
The Litosomini are a tribe of weevils in the subfamily Dryophthorinae. Species of Sitophilus, which include the grain weevils, are important cosmopolitan, stored products pests.
References
- Lacordaire, T. 1863: Histoire Naturelle des Insectes. Genera des Coléoptères ou exposé méthodique et critique de tous les genres proposés jusqu'ici dans cet ordre d'insectes. Vol.: 6. Roret. Paris: 637 pp.
- Oberprieler, R.G. 2010: A reclassification of the weevil subfamily Cyclominae (Coleoptera: Curculionidae). Zootaxa, 2515: 1–35
