Larvae of Huxelhydrus syntheticus Sharp, 1882 (Coleoptera: Dytiscidae: Bidessini)

The three larval instars of Huxelhydrus syntheticus Sharp, 1882, the only species of the New Zealand endemic genus Huxelhydrus Sharp, 1882, are described and illustrated including detailed morphometric and chaetotaxic analyses of the cephalic capsule, head appendages, legs, last abdominal segment an...

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Detalles Bibliográficos
Publicado:	2018
Materias:	Australian region Bidessini Chaetotaxy Dytiscidae Huxelhydrus syntheticus Hydroporinae Larva Morphometry New Zealand animal beetle larva limb mandible Animals Coleoptera Extremities Mandible
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11755326_v4524_n1_p121_Michat http://hdl.handle.net/20.500.12110/paper_11755326_v4524_n1_p121_Michat
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_11755326_v4524_n1_p121_Michat
record_format	dspace
spelling	paper:paper_11755326_v4524_n1_p121_Michat2023-06-08T16:09:37Z Larvae of Huxelhydrus syntheticus Sharp, 1882 (Coleoptera: Dytiscidae: Bidessini) Australian region Bidessini Chaetotaxy Dytiscidae Huxelhydrus syntheticus Hydroporinae Larva Morphometry New Zealand animal beetle larva limb mandible New Zealand Animals Coleoptera Extremities Larva Mandible New Zealand The three larval instars of Huxelhydrus syntheticus Sharp, 1882, the only species of the New Zealand endemic genus Huxelhydrus Sharp, 1882, are described and illustrated including detailed morphometric and chaetotaxic analyses of the cephalic capsule, head appendages, legs, last abdominal segment and urogomphi. Larvae of this species are characterized by the absence of the primary pore ABc, shared with all other known Bidessini larvae and therefore representing a potential synapomorphy of the tribe. Third instars of Huxelhydrus can be separated from those of all other known Bidessini genera by the following combination of characters: larger size, mandibular pore MNa located in a clearly distal position with respect to pore MNb, and presence of secondary setae on dorsal surface of protarsus, on posteroventral surface of all tarsi, and on urogomphus. First instars, on their part, can be distinguished by the presence of: an occipital suture, the primary pore PAk, a ventroapical spinula on antennomere 3, and an anterotransverse carina on meso- and metathorax. Copyright © 2018 Magnolia Press. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11755326_v4524_n1_p121_Michat http://hdl.handle.net/20.500.12110/paper_11755326_v4524_n1_p121_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	Australian region Bidessini Chaetotaxy Dytiscidae Huxelhydrus syntheticus Hydroporinae Larva Morphometry New Zealand animal beetle larva limb mandible New Zealand Animals Coleoptera Extremities Larva Mandible New Zealand
spellingShingle	Australian region Bidessini Chaetotaxy Dytiscidae Huxelhydrus syntheticus Hydroporinae Larva Morphometry New Zealand animal beetle larva limb mandible New Zealand Animals Coleoptera Extremities Larva Mandible New Zealand Larvae of Huxelhydrus syntheticus Sharp, 1882 (Coleoptera: Dytiscidae: Bidessini)
topic_facet	Australian region Bidessini Chaetotaxy Dytiscidae Huxelhydrus syntheticus Hydroporinae Larva Morphometry New Zealand animal beetle larva limb mandible New Zealand Animals Coleoptera Extremities Larva Mandible New Zealand
description	The three larval instars of Huxelhydrus syntheticus Sharp, 1882, the only species of the New Zealand endemic genus Huxelhydrus Sharp, 1882, are described and illustrated including detailed morphometric and chaetotaxic analyses of the cephalic capsule, head appendages, legs, last abdominal segment and urogomphi. Larvae of this species are characterized by the absence of the primary pore ABc, shared with all other known Bidessini larvae and therefore representing a potential synapomorphy of the tribe. Third instars of Huxelhydrus can be separated from those of all other known Bidessini genera by the following combination of characters: larger size, mandibular pore MNa located in a clearly distal position with respect to pore MNb, and presence of secondary setae on dorsal surface of protarsus, on posteroventral surface of all tarsi, and on urogomphus. First instars, on their part, can be distinguished by the presence of: an occipital suture, the primary pore PAk, a ventroapical spinula on antennomere 3, and an anterotransverse carina on meso- and metathorax. Copyright © 2018 Magnolia Press.
title	Larvae of Huxelhydrus syntheticus Sharp, 1882 (Coleoptera: Dytiscidae: Bidessini)
title_short	Larvae of Huxelhydrus syntheticus Sharp, 1882 (Coleoptera: Dytiscidae: Bidessini)
title_full	Larvae of Huxelhydrus syntheticus Sharp, 1882 (Coleoptera: Dytiscidae: Bidessini)
title_fullStr	Larvae of Huxelhydrus syntheticus Sharp, 1882 (Coleoptera: Dytiscidae: Bidessini)
title_full_unstemmed	Larvae of Huxelhydrus syntheticus Sharp, 1882 (Coleoptera: Dytiscidae: Bidessini)
title_sort	larvae of huxelhydrus syntheticus sharp, 1882 (coleoptera: dytiscidae: bidessini)
publishDate	2018
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11755326_v4524_n1_p121_Michat http://hdl.handle.net/20.500.12110/paper_11755326_v4524_n1_p121_Michat
_version_	1768545891666362368

Larvae of Huxelhydrus syntheticus Sharp, 1882 (Coleoptera: Dytiscidae: Bidessini)

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