Descriptions of Larvae of Desmopachria Babington (Coleoptera: Dytiscidae: Hydroporinae): The D. vicina sharp species group

Larval morphology of the Desmopachria vicina Sharp species group is investigated. For this purpose, the three larval instars of Desmopachria concolor Sharp and Desmopachria punctatissima Zimmermann are described and illustrated for the first time, with an emphasis on the morphometry and chaetotaxy....

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Detalles Bibliográficos
Publicado:	2007
Materias:	beetle larva morphology morphometry new species phylogenetics Coleoptera Desmopachria Desmopachria concolor Desmopachria convexa Dytiscidae Hydroporinae Hyphydrus
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0010065X_v61_n2_p264_Michat http://hdl.handle.net/20.500.12110/paper_0010065X_v61_n2_p264_Michat
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_0010065X_v61_n2_p264_Michat
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spelling	paper:paper_0010065X_v61_n2_p264_Michat2023-06-08T14:34:13Z Descriptions of Larvae of Desmopachria Babington (Coleoptera: Dytiscidae: Hydroporinae): The D. vicina sharp species group beetle larva morphology morphometry new species phylogenetics Coleoptera Desmopachria Desmopachria concolor Desmopachria convexa Dytiscidae Hydroporinae Hyphydrus Larval morphology of the Desmopachria vicina Sharp species group is investigated. For this purpose, the three larval instars of Desmopachria concolor Sharp and Desmopachria punctatissima Zimmermann are described and illustrated for the first time, with an emphasis on the morphometry and chaetotaxy. Both species have the setae LA3, LA4 and LA5 inserted proximally on the prementum and the seta LA10 inserted distally on the second labial palpomere, the two larval autapomorphies that define the genus Desmopachria Babington. They are also characterized by the presence of secondary setae on the ventral surface of the siphon of third-instar larva; this character state is a synapomorphy of Desmopachria + Hyphydrus Illiger. Desmopachria concolor and D. punctatissima are very similar morphologically, suggesting that they could be closely related phylogenetically. Larvae of the D. vicina species group differ from those of the Desmopachria convexa (Aubé) species group in the presence of one additional seta on the dorsal surface of the prementum, the more distal insertion of the-seta LA2 on the prementum, and the absence of one of the distal pores (LAb or LAd) on the first labial palpomere. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0010065X_v61_n2_p264_Michat http://hdl.handle.net/20.500.12110/paper_0010065X_v61_n2_p264_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	beetle larva morphology morphometry new species phylogenetics Coleoptera Desmopachria Desmopachria concolor Desmopachria convexa Dytiscidae Hydroporinae Hyphydrus
spellingShingle	beetle larva morphology morphometry new species phylogenetics Coleoptera Desmopachria Desmopachria concolor Desmopachria convexa Dytiscidae Hydroporinae Hyphydrus Descriptions of Larvae of Desmopachria Babington (Coleoptera: Dytiscidae: Hydroporinae): The D. vicina sharp species group
topic_facet	beetle larva morphology morphometry new species phylogenetics Coleoptera Desmopachria Desmopachria concolor Desmopachria convexa Dytiscidae Hydroporinae Hyphydrus
description	Larval morphology of the Desmopachria vicina Sharp species group is investigated. For this purpose, the three larval instars of Desmopachria concolor Sharp and Desmopachria punctatissima Zimmermann are described and illustrated for the first time, with an emphasis on the morphometry and chaetotaxy. Both species have the setae LA3, LA4 and LA5 inserted proximally on the prementum and the seta LA10 inserted distally on the second labial palpomere, the two larval autapomorphies that define the genus Desmopachria Babington. They are also characterized by the presence of secondary setae on the ventral surface of the siphon of third-instar larva; this character state is a synapomorphy of Desmopachria + Hyphydrus Illiger. Desmopachria concolor and D. punctatissima are very similar morphologically, suggesting that they could be closely related phylogenetically. Larvae of the D. vicina species group differ from those of the Desmopachria convexa (Aubé) species group in the presence of one additional seta on the dorsal surface of the prementum, the more distal insertion of the-seta LA2 on the prementum, and the absence of one of the distal pores (LAb or LAd) on the first labial palpomere.
title	Descriptions of Larvae of Desmopachria Babington (Coleoptera: Dytiscidae: Hydroporinae): The D. vicina sharp species group
title_short	Descriptions of Larvae of Desmopachria Babington (Coleoptera: Dytiscidae: Hydroporinae): The D. vicina sharp species group
title_full	Descriptions of Larvae of Desmopachria Babington (Coleoptera: Dytiscidae: Hydroporinae): The D. vicina sharp species group
title_fullStr	Descriptions of Larvae of Desmopachria Babington (Coleoptera: Dytiscidae: Hydroporinae): The D. vicina sharp species group
title_full_unstemmed	Descriptions of Larvae of Desmopachria Babington (Coleoptera: Dytiscidae: Hydroporinae): The D. vicina sharp species group
title_sort	descriptions of larvae of desmopachria babington (coleoptera: dytiscidae: hydroporinae): the d. vicina sharp species group
publishDate	2007
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0010065X_v61_n2_p264_Michat http://hdl.handle.net/20.500.12110/paper_0010065X_v61_n2_p264_Michat
_version_	1768544849762451456

Descriptions of Larvae of Desmopachria Babington (Coleoptera: Dytiscidae: Hydroporinae): The D. vicina sharp species group

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