Editing Bean weevil (section)

{{short description|Subfamily of beetles}}
{{Automatic taxobox
| name = Bean weevils
| oldest_fossil = Cenomanian
| image = Bruchinae in Xinjiang.jpg
| image_caption = 
| taxon = Bruchinae
| authority = [[Pierre André Latreille|Latreille]], 1802<ref>{{ITIS |id=678800 |taxon=Bruchinae}}</ref>
| diversity_link = #Genera
| diversity = About 1,650 species in 70 genera
| diversity_ref = <ref>{{cite book|first=Geoffrey|last=Morse|year=2014|chapter=2.7.1 Bruchinae Latreille, 1802|pages=189–198|editor-last1=Leschen|editor-first1=R.A.B.|editor-last2=Beutel|editor-first2=R.G.|title=Handbook of Zoology. Arthropoda: Insecta: Coleoptera: Volume 3: Morphology and Systematics (Phytophaga)|publisher=Walter de Gruyter|place=Berlin - Boston|isbn=978-3-11-027370-0|doi=10.1515/9783110274462.189}}</ref>
| subdivision_ranks = Tribes and subtribes
| subdivision_ref = <ref>{{cite journal|first1=Patrice|last1=Bouchard|first2=Yves|last2=Bousquet|first3=Anthony E.|last3=Davies|first4=Miguel A.|last4=Alonso-Zarazaga|first5=John F.|last5=Lawrence|first6=Chris H. C.|last6=Lyal|first7=Alfred F.|last7=Newton|first8=Chris A. M.|last8=Reid|first9=Michael|last9=Schmitt|first10=S. Adam|last10=Ślipiński|first11=Andrew B. T.|last11=Smith|year=2011|title=Family-group names in Coleoptera (Insecta)|journal=[[ZooKeys]]|issue=88|pages=1–972|doi=10.3897/zookeys.88.807|doi-access=free|pmc=3088472|pmid=21594053}}</ref>
| subdivision = * [[Amblycerini]]
** [[Amblycerina]]
** [[Spermophagina]]
* [[Bruchini]]
** [[Acanthoscelidina]] (= [[Bruchidiina]])
** [[Bruchina]]
** [[Megacerina]]
* [[Eubaptini]]
* [[Kytorhinini]]
* [[Pachymerini]]
** [[Caryedontina]]
** [[Caryopemina]]
** [[Pachymerina]]
* [[Rhaebini]]
* †[[Myanmaropini]]<ref name="Legalovetal2020"/>
| synonyms = Lariidae <small>Bedel, 1901</small>
}}
[[Image:Bonenkever Acanthoscelides obtectus.jpg|thumb|right|Damage to beans by larvae of the common bean weevil, ''[[Acanthoscelides obtectus]]'']]

The '''bean weevils''' or '''seed beetles''' are a [[subfamily]] ('''Bruchinae''') of [[weevil]]s, which in turn are a subset of [[beetle]]s. The Bruchinae now placed in the family [[Chrysomelidae]], though they have historically been treated as a separate family. The subfamily includes about 1,650 species and are found worldwide. 

Bean weevils are generally compact and oval in shape, with small heads somewhat bent under. Sizes range from {{Convert|1|-|22|mm|abbr=out}} for some tropical species. Colors are usually black or brown, often with mottled patterns. Although their [[Mandible (insect mouthpart)|mandible]]s may be elongated, they do not have the long snouts characteristic of other weevils. A defining characteristic of this subfamily is that the [[Elytron|elytra]] don't quite reach the tip of their [[Abdomen (insect anatomy)|abdomen]]s (as seen in the header image).

The Bruchinae are [[granivore]]s, and typically infest various kinds of [[seed]]s or [[bean]]s (hence their [[common name]]s), living most of their lives inside a single seed;{{Citation needed|date=May 2025}} Host plants tend to be [[legume]]s, but species will also be found in [[Convolvulaceae]], [[Arecaceae]], and [[Malvaceae]]. The adults deposit eggs on seeds of these plants, then the larvae chew their way into the seed. When ready to [[pupa]]te, the larvae typically cut an exit hole, then return to their feeding chamber. Due to this, several species are considered [[Pest (organism)|pest]]s. The adult weevils have a habit of feigning death and dropping from a plant when disturbed. 

Several species are native to Great Britain, but there are also records of several [[introduced species]] from stored products in [[warehouse]]s and [[dwelling]]s, although these species cannot proliferate outside of [[Heating, ventilation, and air conditioning|heated buildings]] in that climate.{{Relevance inline|date=May 2025|reason=Why does the UK have to be discussed and not other countries?}}