Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae)

Autores
Michat, Mariano Cruz
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The three larval instars of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae) are described and illustrated for the first time, emphasizing the morphometry and chaetotaxy. In this species, the median process of the prementum is slightly bifid apically, bearing two spine-like setae (LA8), which are diagnostic features of the genus Thermonectus DEJEAN, 1833. The first instar of T. alfredi differs from that of T. succinctus (AUBÉ, 1838) in the number of additional spine-like setae on the dorsal surface of the stipes and on the anterodorsal surface of the prementum, and in the presence of additional anterodistal setae on the metafemur. On the other hand, the third instar of T. alfredi differs from those of T. basillaris (HARRIS, 1829) and T. succinctus in the number of secondary setae on the femur and the metatibia, and from that of T. nigrofasciatus ornaticollis (AUBÉ, 1838) in the length of seta LA8, which is shorter than the median process of the prementum.
Fil: Michat, Mariano Cruz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biologia Experimental. Laboratorio de Entomologia; Argentina
Materia
Coleoptera
Dytiscidae
Aciliini
Larval Morphology
Chaetotaxy
Neotropical Region
Argentina
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/16911
Acceder
id CONICETDig_d620a737e39e03004f1837f045bd3513
oai_identifier_str oai:ri.conicet.gov.ar:11336/16911
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae)Michat, Mariano CruzColeopteraDytiscidaeAciliiniLarval MorphologyChaetotaxyNeotropical RegionArgentinahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The three larval instars of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae) are described and illustrated for the first time, emphasizing the morphometry and chaetotaxy. In this species, the median process of the prementum is slightly bifid apically, bearing two spine-like setae (LA8), which are diagnostic features of the genus Thermonectus DEJEAN, 1833. The first instar of T. alfredi differs from that of T. succinctus (AUBÉ, 1838) in the number of additional spine-like setae on the dorsal surface of the stipes and on the anterodorsal surface of the prementum, and in the presence of additional anterodistal setae on the metafemur. On the other hand, the third instar of T. alfredi differs from those of T. basillaris (HARRIS, 1829) and T. succinctus in the number of secondary setae on the femur and the metatibia, and from that of T. nigrofasciatus ornaticollis (AUBÉ, 1838) in the length of seta LA8, which is shorter than the median process of the prementum.Fil: Michat, Mariano Cruz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biologia Experimental. Laboratorio de Entomologia; ArgentinaWiener Coleopterologen Verein2013-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/16911Michat, Mariano Cruz; Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae); Wiener Coleopterologen Verein; Koleopterologische Rundschau; 83; 9-2013; 7-150075-6547enginfo:eu-repo/semantics/altIdentifier/url/http://www.coleoptera.at/koleopterologische_rundschau.php?id=29info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:57:13Zoai:ri.conicet.gov.ar:11336/16911instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:57:13.891CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae)
title Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae)
spellingShingle Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae)
Michat, Mariano Cruz
Coleoptera
Dytiscidae
Aciliini
Larval Morphology
Chaetotaxy
Neotropical Region
Argentina
title_short Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae)
title_full Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae)
title_fullStr Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae)
title_full_unstemmed Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae)
title_sort Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae)
dc.creator.none.fl_str_mv Michat, Mariano Cruz
author Michat, Mariano Cruz
author_facet Michat, Mariano Cruz
author_role author
dc.subject.none.fl_str_mv Coleoptera
Dytiscidae
Aciliini
Larval Morphology
Chaetotaxy
Neotropical Region
Argentina
topic Coleoptera
Dytiscidae
Aciliini
Larval Morphology
Chaetotaxy
Neotropical Region
Argentina
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The three larval instars of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae) are described and illustrated for the first time, emphasizing the morphometry and chaetotaxy. In this species, the median process of the prementum is slightly bifid apically, bearing two spine-like setae (LA8), which are diagnostic features of the genus Thermonectus DEJEAN, 1833. The first instar of T. alfredi differs from that of T. succinctus (AUBÉ, 1838) in the number of additional spine-like setae on the dorsal surface of the stipes and on the anterodorsal surface of the prementum, and in the presence of additional anterodistal setae on the metafemur. On the other hand, the third instar of T. alfredi differs from those of T. basillaris (HARRIS, 1829) and T. succinctus in the number of secondary setae on the femur and the metatibia, and from that of T. nigrofasciatus ornaticollis (AUBÉ, 1838) in the length of seta LA8, which is shorter than the median process of the prementum.
Fil: Michat, Mariano Cruz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biologia Experimental. Laboratorio de Entomologia; Argentina
description The three larval instars of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae) are described and illustrated for the first time, emphasizing the morphometry and chaetotaxy. In this species, the median process of the prementum is slightly bifid apically, bearing two spine-like setae (LA8), which are diagnostic features of the genus Thermonectus DEJEAN, 1833. The first instar of T. alfredi differs from that of T. succinctus (AUBÉ, 1838) in the number of additional spine-like setae on the dorsal surface of the stipes and on the anterodorsal surface of the prementum, and in the presence of additional anterodistal setae on the metafemur. On the other hand, the third instar of T. alfredi differs from those of T. basillaris (HARRIS, 1829) and T. succinctus in the number of secondary setae on the femur and the metatibia, and from that of T. nigrofasciatus ornaticollis (AUBÉ, 1838) in the length of seta LA8, which is shorter than the median process of the prementum.
publishDate 2013
dc.date.none.fl_str_mv 2013-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/16911
Michat, Mariano Cruz; Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae); Wiener Coleopterologen Verein; Koleopterologische Rundschau; 83; 9-2013; 7-15
0075-6547
url http://hdl.handle.net/11336/16911
identifier_str_mv Michat, Mariano Cruz; Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae); Wiener Coleopterologen Verein; Koleopterologische Rundschau; 83; 9-2013; 7-15
0075-6547
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.coleoptera.at/koleopterologische_rundschau.php?id=29
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiener Coleopterologen Verein
publisher.none.fl_str_mv Wiener Coleopterologen Verein
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269449530376192
score 13.13397

Publicaciones similares