Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distribution

Autores
Cabrera, Nora Clara; Sosa, Alejandro J.; Dorado, Jimena; Julien, M.
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Flea beetles of alligator weed, Alternanthera philoxeroides (Martius) Grisebach (Amaranthaceae), were collected in Argentina, Uruguay, Paraguay, and Brazil. Species in the genera Disonycha Chevrolat, Agasicles Jacoby, and Systena Chevrolat were frequently found on this weed. Systena nitentula Bechyné 1954 was the most abundant within Systena. This species is reported for the first time from Argentina at north of 30° S. The male is described and holotype female is redescribed adding new diagnostic characters: mouthparts, hind wings, metendosternite, and male and female genitalia. S. nitentula is recognized by the combined characters of piceous elytra with J-shaped vittae, a small spermatheca pump, and internal median lobe sac with five sclerotized plates. Differences in color patterns between S. nitentula, S. tenuis Bechyné, and S. s-littera L. also are considered. S. nitentula presents three instars that can be separated through head width. New biological data based on laboratory rearing and field observations shows that S. nitentula could be a monophagous species strongly associated to the alligator weed growing in terrestrial conditions. This information promotes S. nitentula as a potential biocontrol agent of this invasive weed.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Alligator weed
Alternanthera philoxeroides
Alticinae
Biological control
Systena nitentula
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/84369
Acceder
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network_name_str SEDICI (UNLP)
spelling Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distributionCabrera, Nora ClaraSosa, Alejandro J.Dorado, JimenaJulien, M.Ciencias NaturalesAlligator weedAlternanthera philoxeroidesAlticinaeBiological controlSystena nitentulaFlea beetles of alligator weed, <i>Alternanthera philoxeroides</i> (Martius) Grisebach (Amaranthaceae), were collected in Argentina, Uruguay, Paraguay, and Brazil. Species in the genera <i>Disonycha</i> Chevrolat, <i>Agasicles</i> Jacoby, and <i>Systena</i> Chevrolat were frequently found on this weed. <i>Systena nitentula</i> Bechyné 1954 was the most abundant within <i>Systena</i>. This species is reported for the first time from Argentina at north of 30° S. The male is described and holotype female is redescribed adding new diagnostic characters: mouthparts, hind wings, metendosternite, and male and female genitalia. <i>S. nitentula</i> is recognized by the combined characters of piceous elytra with J-shaped vittae, a small spermatheca pump, and internal median lobe sac with five sclerotized plates. Differences in color patterns between <i>S. nitentula</i>, <i>S. tenuis</i> Bechyné, and S. <i>s-littera</i> L. also are considered. <i>S. nitentula</i> presents three instars that can be separated through head width. New biological data based on laboratory rearing and field observations shows that <i>S. nitentula</i> could be a monophagous species strongly associated to the alligator weed growing in terrestrial conditions. This information promotes <i>S. nitentula</i> as a potential biocontrol agent of this invasive weed.Facultad de Ciencias Naturales y Museo2005info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf643-652http://sedici.unlp.edu.ar/handle/10915/84369enginfo:eu-repo/semantics/altIdentifier/issn/0013-8746info:eu-repo/semantics/altIdentifier/doi/10.1603/0013-8746(2005)098[0643:SNCCAF]2.0.CO;2info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:48:32Zoai:sedici.unlp.edu.ar:10915/84369Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:48:32.33SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distribution
title Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distribution
spellingShingle Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distribution
Cabrera, Nora Clara
Ciencias Naturales
Alligator weed
Alternanthera philoxeroides
Alticinae
Biological control
Systena nitentula
title_short Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distribution
title_full Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distribution
title_fullStr Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distribution
title_full_unstemmed Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distribution
title_sort Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distribution
dc.creator.none.fl_str_mv Cabrera, Nora Clara
Sosa, Alejandro J.
Dorado, Jimena
Julien, M.
author Cabrera, Nora Clara
author_facet Cabrera, Nora Clara
Sosa, Alejandro J.
Dorado, Jimena
Julien, M.
author_role author
author2 Sosa, Alejandro J.
Dorado, Jimena
Julien, M.
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Alligator weed
Alternanthera philoxeroides
Alticinae
Biological control
Systena nitentula
topic Ciencias Naturales
Alligator weed
Alternanthera philoxeroides
Alticinae
Biological control
Systena nitentula
dc.description.none.fl_txt_mv Flea beetles of alligator weed, <i>Alternanthera philoxeroides</i> (Martius) Grisebach (Amaranthaceae), were collected in Argentina, Uruguay, Paraguay, and Brazil. Species in the genera <i>Disonycha</i> Chevrolat, <i>Agasicles</i> Jacoby, and <i>Systena</i> Chevrolat were frequently found on this weed. <i>Systena nitentula</i> Bechyné 1954 was the most abundant within <i>Systena</i>. This species is reported for the first time from Argentina at north of 30° S. The male is described and holotype female is redescribed adding new diagnostic characters: mouthparts, hind wings, metendosternite, and male and female genitalia. <i>S. nitentula</i> is recognized by the combined characters of piceous elytra with J-shaped vittae, a small spermatheca pump, and internal median lobe sac with five sclerotized plates. Differences in color patterns between <i>S. nitentula</i>, <i>S. tenuis</i> Bechyné, and S. <i>s-littera</i> L. also are considered. <i>S. nitentula</i> presents three instars that can be separated through head width. New biological data based on laboratory rearing and field observations shows that <i>S. nitentula</i> could be a monophagous species strongly associated to the alligator weed growing in terrestrial conditions. This information promotes <i>S. nitentula</i> as a potential biocontrol agent of this invasive weed.
Facultad de Ciencias Naturales y Museo
description Flea beetles of alligator weed, <i>Alternanthera philoxeroides</i> (Martius) Grisebach (Amaranthaceae), were collected in Argentina, Uruguay, Paraguay, and Brazil. Species in the genera <i>Disonycha</i> Chevrolat, <i>Agasicles</i> Jacoby, and <i>Systena</i> Chevrolat were frequently found on this weed. <i>Systena nitentula</i> Bechyné 1954 was the most abundant within <i>Systena</i>. This species is reported for the first time from Argentina at north of 30° S. The male is described and holotype female is redescribed adding new diagnostic characters: mouthparts, hind wings, metendosternite, and male and female genitalia. <i>S. nitentula</i> is recognized by the combined characters of piceous elytra with J-shaped vittae, a small spermatheca pump, and internal median lobe sac with five sclerotized plates. Differences in color patterns between <i>S. nitentula</i>, <i>S. tenuis</i> Bechyné, and S. <i>s-littera</i> L. also are considered. <i>S. nitentula</i> presents three instars that can be separated through head width. New biological data based on laboratory rearing and field observations shows that <i>S. nitentula</i> could be a monophagous species strongly associated to the alligator weed growing in terrestrial conditions. This information promotes <i>S. nitentula</i> as a potential biocontrol agent of this invasive weed.
publishDate 2005
dc.date.none.fl_str_mv 2005
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/84369
url http://sedici.unlp.edu.ar/handle/10915/84369
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/doi/10.1603/0013-8746(2005)098[0643:SNCCAF]2.0.CO;2
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
643-652
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instname_str Universidad Nacional de La Plata
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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