Acanthoscelides Modestus
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''Acanthoscelides'' is a
genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
bean weevil The bean weevils or seed beetles are a subfamily (Bruchinae) of weevils, which in turn are a subset of beetles. The Bruchinae now placed in the family Chrysomelidae, though they have historically been treated as a separate family. The subfamily ...
s of the subfamily Bruchinae. They are native to the
New World The term "New World" is used to describe the majority of lands of Earth's Western Hemisphere, particularly the Americas, and sometimes Oceania."America." ''The Oxford Companion to the English Language'' (). McArthur, Tom, ed., 1992. New York: ...
. About one third of them can be found in
Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
.Nápoles, J. R. and J. M. Kingsolver. (2009)
A new species of ''Acanthoscelides'' Schilsky (Coleoptera: Bruchidae) from Mexico with some biological notes.
''Neotropical Entomology'' 38(4), 497-500.
In 1946 this genus was populated with at least 322 species transferred from other genera, mainly '' Bruchus''. Some of these were later placed into other genera.Kingsolver, J. M
''Handbook of the Bruchidae of the United States and Canada (Insecta, Coleoptera)'', Volume I.
Technical Bulletin 1912. USDA ARS. 2004. pg. 89.
Estimates of the current number of named species range from about 300Alvarez, N., et al. (2006)
Phylogenetic relationships in the Neotropical bruchid genus ''Acanthoscelides'' (Bruchinae, Bruchidae, Coleoptera).
''Journal of Zoological Systematics and Evolutionary Research'' 44(1) 63-74.
to 340, and there are over 200 undescribed species. 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. The
elytra An elytron (; ; : elytra, ) is a modified, hardened forewing of beetles (Coleoptera), though a few of the true bugs (Hemiptera) such as the family Schizopteridae are extremely similar; in true bugs, the forewings are called hemelytra (sometime ...
are about twice as long as they are wide. The beetles of this genus are diverse and the characters used to classify them are not well defined; historically, ''Acanthoscelides'' is a
wastebasket taxon Wastebasket taxon (also called a wastebin taxon, dustbin taxon or catch-all taxon) is a term used by some taxonomists to refer to a taxon that has the purpose of classifying organisms that do not fit anywhere else. They are typically defined by e ...
, "used as a genus into which species are placed that do not fit within the limits of other genera". Most of these beetles feed on
legume Legumes are plants in the pea family Fabaceae (or Leguminosae), or the fruit or seeds of such plants. When used as a dry grain for human consumption, the seeds are also called pulses. Legumes are grown agriculturally, primarily for human consum ...
s. The majority specialize on
Faboideae The Faboideae are a subfamily of the flowering plant family Fabaceae or Leguminosae. An acceptable alternative name for the subfamily is Papilionoideae, or Papilionaceae when this group of plants is treated as a family. This subfamily is widely ...
, many on
Mimosoideae The Mimosoideae are a traditional subfamily of trees, herbs, lianas, and shrubs in the pea family (Fabaceae) that mostly grow in tropical and subtropical climates. They are typically characterized by having radially symmetric flowers, with petal ...
, and fewer on
Caesalpinioideae Caesalpinioideae is a botanical name at the rank of subfamily, placed in the large family Fabaceae or Leguminosae. Its name is formed from the generic name '' Caesalpinia''. It is known also as the peacock flower subfamily. The Caesalpinioideae a ...
. Some are known from non-legume host plants, such as mallows. Familiar species include ''Acanthoscelides obtectus'', a worldwide pest of
bean A bean is the seed of some plants in the legume family (Fabaceae) used as a vegetable for human consumption or animal feed. The seeds are often preserved through drying (a ''pulse''), but fresh beans are also sold. Dried beans are traditi ...
s, and ''Acanthoscelides macrophthalmus'', which is employed as an agent of
biological pest control Biological control or biocontrol is a method of controlling pests, whether pest animals such as insects and mites, weeds, or pathogens affecting animals or plants by using other organisms. It relies on predation, parasitism, herbivory, or ot ...
against the invasive tree ''
Leucaena leucocephala ''Leucaena leucocephala'' is a small fast-growing Mimosoideae, mimosoid tree native to southern Mexico and northern Central America (Belize and Guatemala) and is now naturalized throughout the tropics including parts of Asia. Common names inclu ...
''.


Species

Species include: *''
Acanthoscelides aequalis ''Acanthoscelides'' is a genus of bean weevils of the subfamily Bruchinae. They are native to the New World. About one third of them can be found in Mexico.Nápoles, J. R. and J. M. Kingsolver. (2009)A new species of ''Acanthoscelides'' Schilsky ...
'' *'' Acanthoscelides alboscutellatus'' (
Horn Horn may refer to: Common uses * Horn (acoustic), a tapered sound guide ** Horn antenna ** Horn loudspeaker ** Vehicle horn ** Train horn *Horn (anatomy), a pointed, bony projection on the head of various animals * Horn (instrument), a family ...
, 1873)
*'' Acanthoscelides atomus'' *''
Acanthoscelides aureolus ''Acanthoscelides aureolus'' is a species of leaf beetle in the family Chrysomelidae The beetle family Chrysomelidae, commonly known as leaf beetles, includes over 37,000 (and probably at least 50,000) species in more than 2,500 genera, making ...
'' (
Horn Horn may refer to: Common uses * Horn (acoustic), a tapered sound guide ** Horn antenna ** Horn loudspeaker ** Vehicle horn ** Train horn *Horn (anatomy), a pointed, bony projection on the head of various animals * Horn (instrument), a family ...
, 1873)
*''
Acanthoscelides baboquivari ''Acanthoscelides'' is a genus of bean weevils of the subfamily Bruchinae. They are native to the New World. About one third of them can be found in Mexico.Nápoles, J. R. and J. M. Kingsolver. (2009)A new species of ''Acanthoscelides'' Schilsky ...
'' *''
Acanthoscelides bisignatus ''Acanthoscelides'' is a genus of bean weevils of the subfamily Bruchinae. They are native to the New World. About one third of them can be found in Mexico.Nápoles, J. R. and J. M. Kingsolver. (2009)A new species of ''Acanthoscelides'' Schilsky ...
'' *''
Acanthoscelides biustulus ''Acanthoscelides biustulus'' is a species of leaf beetle in the family Chrysomelidae The beetle family Chrysomelidae, commonly known as leaf beetles, includes over 37,000 (and probably at least 50,000) species in more than 2,500 genera, makin ...
'' (Fall, 1910) *''
Acanthoscelides calvus ''Acanthoscelides calvus'' is a species of leaf beetle in the family Chrysomelidae. It is found in North America. Larvae feed on ''Crocanthemum ''Crocanthemum'' is a genus of flowering plants in the family Cistaceae. They are native to both N ...
'' (
Horn Horn may refer to: Common uses * Horn (acoustic), a tapered sound guide ** Horn antenna ** Horn loudspeaker ** Vehicle horn ** Train horn *Horn (anatomy), a pointed, bony projection on the head of various animals * Horn (instrument), a family ...
, 1873)
*''
Acanthoscelides chiricahuae ''Acanthoscelides chiricahuae'' is a species of leaf beetle in the family Chrysomelidae. It is found in Central America and North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Wester ...
'' (Fall, 1910) *''
Acanthoscelides compressicornis ''Acanthoscelides'' is a genus of bean weevils of the subfamily Bruchinae. They are native to the New World. About one third of them can be found in Mexico.Nápoles, J. R. and J. M. Kingsolver. (2009)A new species of ''Acanthoscelides'' Schilsky ...
'' (Schaeffer, 1907) *''
Acanthoscelides comstocki ''Acanthoscelides'' is a genus of bean weevils of the subfamily Bruchinae. They are native to the New World. About one third of them can be found in Mexico.Nápoles, J. R. and J. M. Kingsolver. (2009)A new species of ''Acanthoscelides'' Schilsky ...
'' *''
Acanthoscelides daleae ''Acanthoscelides'' is a genus of bean weevils of the subfamily Bruchinae. They are native to the New World. About one third of them can be found in Mexico.Nápoles, J. R. and J. M. Kingsolver. (2009)A new species of ''Acanthoscelides'' Schilsky ...
'' *''
Acanthoscelides desmanthi ''Acanthoscelides'' is a genus of bean weevils of the subfamily Bruchinae. They are native to the New World. About one third of them can be found in Mexico.Nápoles, J. R. and J. M. Kingsolver. (2009)A new species of ''Acanthoscelides'' Schilsky ...
'' *'' Acanthoscelides distinguendus'' *'' Acanthoscelides flavescens'' *''
Acanthoscelides floridae ''Acanthoscelides floridae'' is a species of leaf beetle in the family Chrysomelidae. It is found in the Caribbean region, Central America, and North America North America is a continent in the Northern Hemisphere, Northern and Weste ...
'' *'' Acanthoscelides fraterculus'' *'' Acanthoscelides fumatus'' *'' Acanthoscelides griseolus'' *'' Acanthoscelides helianthemum'' *'' Acanthoscelides herissantitus'' *'' Acanthoscelides inquisitus'' *'' Acanthoscelides kingsolveri'' *'' Acanthoscelides lobatus'' *'' Acanthoscelides longistilus'' *'' Acanthoscelides macrophthalmus'' *''
Acanthoscelides margaretae ''Acanthoscelides margaretae'', the a. margaretae or near, is a species of leaf beetle in the family Chrysomelidae The beetle family Chrysomelidae, commonly known as leaf beetles, includes over 37,000 (and probably at least 50,000) species in ...
'' *''
Acanthoscelides mixtus ''Acanthoscelides'' is a genus of bean weevils of the subfamily Bruchinae. They are native to the New World. About one third of them can be found in Mexico.Nápoles, J. R. and J. M. Kingsolver. (2009)A new species of ''Acanthoscelides'' Schilsky ...
'' *'' Acanthoscelides modestus'' *'' Acanthoscelides mundulus'' *'' Acanthoscelides napensis'' *'' Acanthoscelides oblongoguttatus'' *'' Acanthoscelides obrienorum'' *'' Acanthoscelides obsoletus'' *''
Acanthoscelides obtectus ''Acanthoscelides obtectus'', the bean weevil, is a species of bruchinae, bruchid beetle. The species was described in 1831 by Thomas Say. Bean weevils feed primarily on the seeds of Phaseolus vulgaris, common beans but also feed on the seeds of ...
'' *'' Acanthoscelides obvelatus'' *'' Acanthoscelides oregonensis'' *'' Acanthoscelides pallidipennis'' *'' Acanthoscelides pauperculus'' *'' Acanthoscelides pectoralis'' *'' Acanthoscelides pedicularius'' *'' Acanthoscelides perforatus'' *'' Acanthoscelides prosopoides'' *'' Acanthoscelides pullus'' *'' Acanthoscelides pusillimus'' *'' Acanthoscelides quadridentatus'' *'' Acanthoscelides rufovittatus'' *'' Acanthoscelides sauli''Nápoles, J. R., et al. (2009)
Seed beetles (Coleoptera: Bruchidae) associated with ''Acacia cornigera'' (L.) Willd., with description of a new species of ''Acanthoscelides'' Schilsky.
''Insecta Mundi'' 93 1-11.
*'' Acanthoscelides schaefferi'' *'' Acanthoscelides schrankiae'' *'' Acanthoscelides seminulum'' *'' Acanthoscelides sousai'' *'' Acanthoscelides speciosus'' *'' Acanthoscelides stylifer'' *'' Acanthoscelides subaequalis'' *'' Acanthoscelides submuticus'' *'' Acanthoscelides tenuis'' *'' Acanthoscelides tridenticulatus''


References


External links

{{Authority control Chrysomelidae genera Bruchinae Taxa named by Friedrich Julius Schilsky