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.
Callosobruchus maculatus is a species of beetles known commonly as the cowpea weevil or cowpea seed beetle. It is a member of the leaf beetle family, Chrysomelidae, and not a true weevil. It is often mistaken for Callosobruchus chinensis, another bean beetle species with a similar lifestyle. This common pest of stored legumes has a cosmopolitan distribution, occurring on every continent except Antarctica. The beetle most likely originated in West Africa and moved around the globe with the trade of legumes and other crops. As only a small number of individuals were likely present in legumes carried by people to distant places, the populations that have invaded various parts of the globe have likely gone through multiple bottlenecks. Despite these bottlenecks and the subsequent rounds of inbreeding, these populations persist. This ability to withstand a high degree of inbreeding has likely contributed to this species’ prevalence as a pest.
Stator is a genus of seed beetles in the family Chrysomelidae. There are about 14 described species in Stator. Most members of the genus specialize on legumes.
Caryobruchus gleditsiae is a species of beetle in the family Chrysomelidae. It lives in North and Central America and develops inside the seeds of palm trees. Adults grow to a maximum length of 11 mm (0.43 in), the size depending on the size of the seed it grew up in. The species was first described by Carl Linnaeus in his 1763 Centuria Insectorum.
Bruchidius is a genus of beetles in the bean weevil subfamily (Bruchinae) of the leaf beetle family, Chrysomelidae. Most are native to the Old World.
Bruchus is a genus of beetles in the leaf beetle family, Chrysomelidae. They are distributed mainly in the Palearctic, especially in Europe. Several occur in other parts of the world, such as North America, Africa, and Australia, as introduced species. Several species are notorious agricultural pests.
Acanthoscelides obtectus, the bean weevil, is a species of bruchid beetle. The species was described in 1831 by Thomas Say.
Callosobruchus is a genus of beetles in the family Chrysomelidae, the leaf beetles. It is in the subfamily Bruchinae, the bean weevils. Many beetles in the genus are well known as economically important pests that infest stored foodstuffs.
Acanthoscelides tenuis is a species in the family Chrysomelidae, in the order Coleoptera ("beetles"). It is found in North America.
Pseudoluperus is a genus of leaf beetles in the family Chrysomelidae. There are 15 described species in Pseudoluperus.
Acanthoscelides seminulum is a species of leaf beetle in the family Chrysomelidae. It is found in North America.
Apioninae is a subfamily of pear-shaped weevils in the family of beetles known as Brentidae. There are at least 20 genera and 80 described species in Apioninae. They feed on living vegetation and sometimes on galls, making them occasional pests or tools of biological control.
Eumolpini is a tribe of leaf beetles in the subfamily Eumolpinae. It is the largest tribe in the subfamily, with approximately 170 genera found worldwide. Members of the tribe almost always have a longitudinal median groove on the pygidium, which possibly helps to keep the elytra locked at rest. They also generally have a subglabrous body, as well as appendiculate pretarsal claws.
Bruchus pisorum, known generally as pea weevil, is a species of leaf beetle in the family Chrysomelidae. Other common names include the pea beetle and pea seed beetle. It is found in Europe and Northern Asia, North America, and temperate Asia.
Tymnes is a genus of leaf beetles in the subfamily Eumolpinae. It is known from North America and Central America. There are at least nine described species in Tymnes.
Mimosestes is a genus of pea and bean weevils in the beetle family Chrysomelidae. There are about 13 described species in Mimosestes.
Chrysodinopsis is a genus of leaf beetles in the subfamily Eumolpinae. It was first described by the Czech entomologist Jan Bechyné in 1950. There are three described species in Chrysodinopsis. The genus is possibly synonymous with Brachypnoea.
Metaparia is a genus of leaf beetles in the subfamily Eumolpinae. There are nine described species in Metaparia, distributed from the United States to Central America.
Amblycerus is a genus of pea and bean weevils in the beetle family Chrysomelidae. There are more than 60 described species in Amblycerus.
Rhaebus is a genus of metallic bean weevils in the subfamily Bruchinae, and the only member of the tribe Rhaebini. It is restricted to the Palearctic region.
