First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)

The larva of the whirligig beetle Enhydrus sulcatus (Wiedemann, 1821) is described and illustrated for the first time, including detailed morphometric and chaetotaxic analyses of the cephalic capsule, head appendages and legs. Larvae of Enhydrus Laporte, 1834 exhibit the characters traditionally rec...

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Guardado en:
Detalles Bibliográficos
Publicado: 2016
Materias:
Adephaga
Dineutini
Morphometry
Neotropics
Sensilla
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00855626_v60_n3_p231_Michat
http://hdl.handle.net/20.500.12110/paper_00855626_v60_n3_p231_Michat
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00855626_v60_n3_p231_Michat
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spelling paper:paper_00855626_v60_n3_p231_Michat2023-06-08T15:07:40Z First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae) Adephaga Dineutini Morphometry Neotropics Sensilla The larva of the whirligig beetle Enhydrus sulcatus (Wiedemann, 1821) is described and illustrated for the first time, including detailed morphometric and chaetotaxic analyses of the cephalic capsule, head appendages and legs. Larvae of Enhydrus Laporte, 1834 exhibit the characters traditionally recognized as autapomorphies of the family Gyrinidae: well developed cardo, completely divided prementum, presence of lateral abdominal tracheal gills, and presence of four terminal hooks on the pygopod. The egg bursters located on the parietal, the presence of an additional sensorial plate on the third antennomere, and a well developed lacinia may also represent autapomorphies of the family. Enhydrus larvae share with those of the other known Dineutini genera the presence of numerous minute additional setae on the mandible, the presence of additional setae on the cardo, the submedial position of the coxal seta CO12, the absence of the trochanteral seta TR2, and the presence of numerous pore-like additional structures on the ultimate maxillary and labial palpomeres. On the other hand, Enhydrus can be distinguished from the other known dineutine genera by the presence of pore-like additional structures on the basal maxillary and labial palpomeres, the presence of ventral spinulae on the pygopod, and the bare tracheal gills, among other characters. © 2016 Sociedade Brasileira de Entomologia 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00855626_v60_n3_p231_Michat http://hdl.handle.net/20.500.12110/paper_00855626_v60_n3_p231_Michat
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Adephaga
Dineutini
Morphometry
Neotropics
Sensilla
spellingShingle Adephaga
Dineutini
Morphometry
Neotropics
Sensilla
First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)
topic_facet Adephaga
Dineutini
Morphometry
Neotropics
Sensilla
description The larva of the whirligig beetle Enhydrus sulcatus (Wiedemann, 1821) is described and illustrated for the first time, including detailed morphometric and chaetotaxic analyses of the cephalic capsule, head appendages and legs. Larvae of Enhydrus Laporte, 1834 exhibit the characters traditionally recognized as autapomorphies of the family Gyrinidae: well developed cardo, completely divided prementum, presence of lateral abdominal tracheal gills, and presence of four terminal hooks on the pygopod. The egg bursters located on the parietal, the presence of an additional sensorial plate on the third antennomere, and a well developed lacinia may also represent autapomorphies of the family. Enhydrus larvae share with those of the other known Dineutini genera the presence of numerous minute additional setae on the mandible, the presence of additional setae on the cardo, the submedial position of the coxal seta CO12, the absence of the trochanteral seta TR2, and the presence of numerous pore-like additional structures on the ultimate maxillary and labial palpomeres. On the other hand, Enhydrus can be distinguished from the other known dineutine genera by the presence of pore-like additional structures on the basal maxillary and labial palpomeres, the presence of ventral spinulae on the pygopod, and the bare tracheal gills, among other characters. © 2016 Sociedade Brasileira de Entomologia
title First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)
title_short First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)
title_full First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)
title_fullStr First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)
title_full_unstemmed First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)
title_sort first larval description and chaetotaxic analysis of the neotropical whirligig beetle genus enhydrus laporte (coleoptera, gyrinidae)
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00855626_v60_n3_p231_Michat
http://hdl.handle.net/20.500.12110/paper_00855626_v60_n3_p231_Michat
_version_ 1768545042308268032

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