# Acanthoscelides

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{{Short description|Genus of beetles}}
{{Automatic taxobox
| image = Acanthoscelides obtectus (Say, 1831).jpg
| image_caption = ''[Acanthoscelides obtectus](/source/Acanthoscelides_obtectus)''
| taxon = Acanthoscelides
| display_parents = 2
| authority = [Schilsky](/source/Friedrich_Julius_Schilsky), 1905
| subdivision_ranks = Species
| subdivision = 300+, see text
}}

'''''Acanthoscelides''''' is a [genus](/source/genus) of [bean weevil](/source/bean_weevil)s of the subfamily Bruchinae. They are native to the [New World](/source/New_World). About one third of them can be found in [Mexico](/source/Mexico).<ref name=napne>Nápoles, J. R. and J. M. Kingsolver. (2009). [http://www.scielo.br/scielo.php?pid=S1519-566X2009000400009&script=sci_arttext A new species of ''Acanthoscelides'' Schilsky (Coleoptera: Bruchidae) from Mexico with some biological notes.] ''Neotropical Entomology'' 38(4), 497-500.</ref>

In 1946 this genus was populated with at least 322 species transferred from other genera, mainly ''[Bruchus](/source/Bruchus)''. Some of these were later placed into other genera.<ref name=king>Kingsolver, J. M. [https://www.ars.usda.gov/is/np/Bruchidae/BruchidaeVol1.pdf ''Handbook of the Bruchidae of the United States and Canada (Insecta, Coleoptera)'', Volume I.] Technical Bulletin 1912. USDA ARS. 2004. pg. 89.</ref> Estimates of the current number of named species range from about 300<ref name=alv>Alvarez, N., et al. (2006). [http://coleoptera-neotropical.org/BIBLIOTECAJEBT/pdf/bruchidae/Alvarez%20N.,%20Romero,%20et.%20al.%202006.pdf Phylogenetic relationships in the Neotropical bruchid genus ''Acanthoscelides'' (Bruchinae, Bruchidae, Coleoptera).] ''Journal of Zoological Systematics and Evolutionary Research'' 44(1) 63-74.</ref> to 340,<ref name=napne/> and there are over 200 undescribed species.<ref name=napne/>

These beetles are generally 1.1 to 3.5 millimeters long. They have large, protruding eyes, and males often have larger eyes than females. They sometimes also have longer antennae.<ref name=king/> The [elytra](/source/elytron) are about twice as long as they are wide.<ref name=napne/> The beetles of this genus are diverse and the characters used to classify them are not well defined;<ref name=king/> historically, ''Acanthoscelides'' is a [wastebasket taxon](/source/wastebasket_taxon), "used as a genus into which species are placed that do not fit within the limits of other genera".<ref name=napne/>

Most of these beetles feed on [legume](/source/legume)s. The majority specialize on [Faboideae](/source/Faboideae), many on [Mimosoideae](/source/Mimosoideae), and fewer on [Caesalpinioideae](/source/Caesalpinioideae). Some are known from non-legume host plants, such as [mallows](/source/Malvaceae).<ref name=alv/>

Familiar species include ''Acanthoscelides obtectus'', a worldwide pest of [bean](/source/bean)s,<ref>[http://www.grainscanada.gc.ca/storage-entrepose/pip-irp/bw-bh-eng.htm ''Acanthoscelides obtectus'' (Say).] Canadian Grain Commission.</ref> and ''Acanthoscelides macrophthalmus'', which is employed as an agent of [biological pest control](/source/biological_pest_control) against the invasive tree ''[Leucaena leucocephala](/source/Leucaena_leucocephala)''.<ref>Egli, D. and T. Olckers. (2012). [http://www.bioone.org/doi/abs/10.4001/003.020.0114?journalCode=afen#.Ug2raffn_rc Oviposition patterns and egg mortality in ''Acanthoscelides macrophthalmus'' (Chrysomelidae: Bruchinae), a biological control agent of ''Leucaena leucocephala'' (Fabaceae) in South Africa.] ''African Entomology'' 20(1), 111-18.</ref>

==Species==
Species include:<ref name=king/><ref>[https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=114505 ''Acanthoscelides''.] Integrated Taxonomic Information System.</ref>
*''[Acanthoscelides aequalis](/source/Acanthoscelides_aequalis)''
*''[Acanthoscelides alboscutellatus](/source/Acanthoscelides_alboscutellatus)'' <small>([Horn](/source/George_Henry_Horn), 1873)</small>
*''[Acanthoscelides atomus](/source/Acanthoscelides_atomus)''
*''[Acanthoscelides aureolus](/source/Acanthoscelides_aureolus)'' <small>([Horn](/source/George_Henry_Horn), 1873)</small>
*''[Acanthoscelides baboquivari](/source/Acanthoscelides_baboquivari)''
*''[Acanthoscelides bisignatus](/source/Acanthoscelides_bisignatus)''
*''[Acanthoscelides biustulus](/source/Acanthoscelides_biustulus)'' <small>(Fall, 1910)</small>
*''[Acanthoscelides calvus](/source/Acanthoscelides_calvus)'' <small>([Horn](/source/George_Henry_Horn), 1873)</small>
*''[Acanthoscelides chiricahuae](/source/Acanthoscelides_chiricahuae)'' <small>(Fall, 1910)</small>
*''[Acanthoscelides compressicornis](/source/Acanthoscelides_compressicornis)'' <small>(Schaeffer, 1907)</small>
*''[Acanthoscelides comstocki](/source/Acanthoscelides_comstocki)''
*''[Acanthoscelides daleae](/source/Acanthoscelides_daleae)''
*''[Acanthoscelides desmanthi](/source/Acanthoscelides_desmanthi)''
*''[Acanthoscelides distinguendus](/source/Acanthoscelides_distinguendus)''[[File:Acanthoscelides longescutus.jpg|thumb|right|''[Acanthoscelides longescutus](/source/Acanthoscelides_longescutus)'']]
*''[Acanthoscelides flavescens](/source/Acanthoscelides_flavescens)''
*''[Acanthoscelides floridae](/source/Acanthoscelides_floridae)''
*''[Acanthoscelides fraterculus](/source/Acanthoscelides_fraterculus)''
*''[Acanthoscelides fumatus](/source/Acanthoscelides_fumatus)''
*''[Acanthoscelides griseolus](/source/Acanthoscelides_griseolus)''
*''[Acanthoscelides helianthemum](/source/Acanthoscelides_helianthemum)''
*''[Acanthoscelides herissantitus](/source/Acanthoscelides_herissantitus)''
*''[Acanthoscelides inquisitus](/source/Acanthoscelides_inquisitus)''
*''[Acanthoscelides kingsolveri](/source/Acanthoscelides_kingsolveri)''
*''[Acanthoscelides lobatus](/source/Acanthoscelides_lobatus)''
*''[Acanthoscelides longistilus](/source/Acanthoscelides_longistilus)''
*''[Acanthoscelides macrophthalmus](/source/Acanthoscelides_macrophthalmus)''
*''[Acanthoscelides margaretae](/source/Acanthoscelides_margaretae)''   
*''[Acanthoscelides mixtus](/source/Acanthoscelides_mixtus)''    
*''[Acanthoscelides modestus](/source/Acanthoscelides_modestus)''    
*''[Acanthoscelides mundulus](/source/Acanthoscelides_mundulus)''    
*''[Acanthoscelides napensis](/source/Acanthoscelides_napensis)'' 
*''[Acanthoscelides oblongoguttatus](/source/Acanthoscelides_oblongoguttatus)''  
*''[Acanthoscelides obrienorum](/source/Acanthoscelides_obrienorum)''   
*''[Acanthoscelides obsoletus](/source/Acanthoscelides_obsoletus)''    
*''[Acanthoscelides obtectus](/source/Acanthoscelides_obtectus)'' 
*''[Acanthoscelides obvelatus](/source/Acanthoscelides_obvelatus)''
*''[Acanthoscelides oregonensis](/source/Acanthoscelides_oregonensis)'' 
*''[Acanthoscelides pallidipennis](/source/Acanthoscelides_pallidipennis)'' 
*''[Acanthoscelides pauperculus](/source/Acanthoscelides_pauperculus)''  
*''[Acanthoscelides pectoralis](/source/Acanthoscelides_pectoralis)''  
*''[Acanthoscelides pedicularius](/source/Acanthoscelides_pedicularius)''   
*''[Acanthoscelides perforatus](/source/Acanthoscelides_perforatus)''
*''[Acanthoscelides prosopoides](/source/Acanthoscelides_prosopoides)''  
*''[Acanthoscelides pullus](/source/Acanthoscelides_pullus)''   
*''[Acanthoscelides pusillimus](/source/Acanthoscelides_pusillimus)''   
*''[Acanthoscelides quadridentatus](/source/Acanthoscelides_quadridentatus)''   
*''[Acanthoscelides rufovittatus](/source/Acanthoscelides_rufovittatus)''
*''[Acanthoscelides sauli](/source/Acanthoscelides_sauli)''<ref>Nápoles, J. R., et al. (2009). [http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1616&context=insectamundi Seed beetles (Coleoptera: Bruchidae) associated with ''Acacia cornigera'' (L.) Willd., with description of a new species of ''Acanthoscelides'' Schilsky.] ''Insecta Mundi'' 93 1-11.</ref>  
*''[Acanthoscelides schaefferi](/source/Acanthoscelides_schaefferi)''   
*''[Acanthoscelides schrankiae](/source/Acanthoscelides_schrankiae)''   
*''[Acanthoscelides seminulum](/source/Acanthoscelides_seminulum)'' 
*''[Acanthoscelides sousai](/source/Acanthoscelides_sousai)'' 
*''[Acanthoscelides speciosus](/source/Acanthoscelides_speciosus)''    
*''[Acanthoscelides stylifer](/source/Acanthoscelides_stylifer)''    
*''[Acanthoscelides subaequalis](/source/Acanthoscelides_subaequalis)''    
*''[Acanthoscelides submuticus](/source/Acanthoscelides_submuticus)''    
*''[Acanthoscelides tenuis](/source/Acanthoscelides_tenuis)''    
*''[Acanthoscelides tridenticulatus](/source/Acanthoscelides_tridenticulatus)''

==References==
{{Reflist}}

==External links==
{{Wikispecies|position=left}}

{{Taxonbar|from=Q1645100}}
{{Authority control}}

Category:Chrysomelidae genera
Category:Bruchinae
Category:Acanthoscelides
Category:Taxa named by Friedrich Julius Schilsky

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Adapted from the Wikipedia article [Acanthoscelides](https://en.wikipedia.org/wiki/Acanthoscelides) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Acanthoscelides?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.