Xerodermus porcellus | |
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Species: | X. porcellus |
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Xerodermus porcellus Lacordaire, 1866 | |
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Xerodermus porcellus, is a species of weevil found in India and Sri Lanka. [1] [2] [3] [4]
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. Approximately 97,000 species of weevils are known. They belong to several families, with most of them in the family Curculionidae. 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, which belongs to the family Ptinidae.
The bean weevils or seed beetles are a subfamily (Bruchinae) of beetles, now placed in the family Chrysomelidae, though they have historically been treated as a separate family. They are granivores, and typically infest various kinds of seeds or beans, living most of their lives inside a single seed. The subfamily includes about 1,650 species and are found worldwide.
The beetle subfamily Curculioninae is part of the weevil family Curculionidae. It contains over 23,500 described species in 2,200 genera, and is therefore the largest weevil subfamily. Given that the beetle order (Coleoptera) contains about one-quarter of all known organisms, the Curculioninae represent one of the – if not the – most successful radiations of terrestrial Metazoa.
The insect tribe Stromboscerini is part of the weevil family Curculionidae, subfamily Dryophthorinae. It is a small and little-known weevil group. Alonso-Zarazaga & Lyal (1999) treated it as a subfamily.
Lamiinae, commonly called flat-faced longhorns, are a subfamily of the longhorn beetle family (Cerambycidae). The subfamily includes over 750 genera, rivaled in diversity within the family only by the subfamily Cerambycinae.
Erotylidae, or the pleasing fungus beetles, is a family of beetles belonging to Cucujoidea containing over 100 genera. In the present circumscription, it contains 6 tribes and 10 subfamilies. In other words, the narrowly circumscribed Erotylidae correspond to the subfamily Erotylinae in the definition sensu lato. There are doubts on the monophyly of lower ranked taxa within Erotylidae, with further phylogenetic studies requiring better sampling and studies of unexplored character sets, for example the metendosternite and penile flagellum, which are generally lacking detailed morphological studies within the Coleoptera literature. The Eroytlina taxonomy is based on traits such as their different colors and not off morphological differences like mouthparts, thorax, and abdominal terminalia (Pecci-Maddalena).
The Entiminae are a large subfamily in the weevil family Curculionidae, containing most of the short-nosed weevils, including such genera as Entimus, Otiorhynchus, Phyllobius, Sitona, and Pachyrrhynchus. In comparison with their stunning diversity, only a few of these weevils are notorious pests of major economic importance. Entimines are commonly encountered in the field, including urban environments, and abundant in entomological collections.
Lechriopini is a tribe of true weevils in the beetle family Curculionidae. There are more than 20 genera and 510 described species in Lechriopini.
Ectemnorhinini is a weevil tribe in the subfamily Entiminae.
Eustylini is a primarily Neotropical weevil tribe in the subfamily Entiminae.
Ophryastini is a weevil tribe in the subfamily Entiminae.
Peritelini is a weevil tribe in the subfamily Entiminae.
Dicercini is a tribe of metallic wood-boring beetles in the family Buprestidae. There are more than 30 genera and over 750 described species in Dicercini.
Euscepes is a genus of hidden snout weevils in the family Curculionidae. There are at least 20 described species in Euscepes.
Pseudoceocephalini is a tribe of primitive weevils in the family of beetles known as Brentidae. There are at least 40 genera and 150 described species in Pseudoceocephalini.
Acratini is a tribe of primitive weevils in the family of beetles known as Brentidae. There are about 12 genera and at least 110 described species in Acratini.
Platystomini is a tribe of fungus weevils in the beetle family Anthribidae. There are 4 genera and over 100 described species in North America, and many others worldwide.
Megascelis is a genus of leaf beetles in the subfamily Eumolpinae. It is known from both North and South America. There are around 140 described species in Megascelis.
Trachelizini is a tribe of primitive weevils in the family of beetles known as Brentidae. There are at least 100 genera in Trachelizini.
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.