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

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</...

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Detalles Bibliográficos
Autores principales: Cabrera, Nora Clara, Sosa, Alejandro J., Dorado, Jimena, Julien, M.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2005
Materias:
Ciencias Naturales
Alligator weed
Alternanthera philoxeroides
Alticinae
Biological control
Systena nitentula
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84369
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84369
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Alligator weed
Alternanthera philoxeroides
Alticinae
Biological control
Systena nitentula
spellingShingle Ciencias Naturales
Alligator weed
Alternanthera philoxeroides
Alticinae
Biological control
Systena nitentula
Cabrera, Nora Clara
Sosa, Alejandro J.
Dorado, Jimena
Julien, M.
Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distribution
topic_facet Ciencias Naturales
Alligator weed
Alternanthera philoxeroides
Alticinae
Biological control
Systena nitentula
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.
format Articulo
Articulo
author Cabrera, Nora Clara
Sosa, Alejandro J.
Dorado, Jimena
Julien, M.
author_facet Cabrera, Nora Clara
Sosa, Alejandro J.
Dorado, Jimena
Julien, M.
author_sort Cabrera, Nora Clara
title Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distribution
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
publishDate 2005
url http://sedici.unlp.edu.ar/handle/10915/84369
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