Thermonectus tremouillesi sp. nov. (Coleoptera: Dytiscidae: Aciliini): description of the adults and larvae and comparisons with other species of the genus

ABSTRACT: A new species of Aciliini diving beetles, Thermonectus tremouillesi sp. nov., is described on the basis of adult and larval specimens collected in shaded forest ponds in Argentina. The adults are compared with morphologically close species and diagnosed by the following combination of char...

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Autores principales:	Michat, Mariano C., Torres, Patricia Laura María
Publicado:	2016
Materias:	adults Argentina chaetotaxy Dytiscinae larvae new species Thermonectus adult beetle color morph comparative study digital image habitat structure identification key larva pond taxonomy Aciliini Coleoptera Dytiscidae Hygrobiidae
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v50_n25-26_p1633_Michat http://hdl.handle.net/20.500.12110/paper_00222933_v50_n25-26_p1633_Michat
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00222933_v50_n25-26_p1633_Michat
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spelling	paper:paper_00222933_v50_n25-26_p1633_Michat2023-06-08T14:49:03Z Thermonectus tremouillesi sp. nov. (Coleoptera: Dytiscidae: Aciliini): description of the adults and larvae and comparisons with other species of the genus Michat, Mariano C. Torres, Patricia Laura María adults Argentina chaetotaxy Dytiscinae larvae new species Thermonectus adult beetle color morph comparative study digital image habitat structure identification key larva new species pond taxonomy Argentina Aciliini Coleoptera Dytiscidae Dytiscinae Hygrobiidae Thermonectus ABSTRACT: A new species of Aciliini diving beetles, Thermonectus tremouillesi sp. nov., is described on the basis of adult and larval specimens collected in shaded forest ponds in Argentina. The adults are compared with morphologically close species and diagnosed by the following combination of characters: the colour pattern on pronotum and elytra; the sexual sculpture of the female well marked, covering basal fourth to basal half of elytra; the male protibia narrow with dorsal margin slightly prominent; the tergite IX of male with four posterior projections; the median lobe of aedeagus bifid apically; and the parameres bearing a terminal spur. The larvae, for their part, are compared with those of other species of the genus and diagnosed by the colour pattern of the cephalic capsule, the shape of the nasale, the spinulae on the prementum, and several chaetotaxic features. Both adults and larvae are illustrated in detail combining scanning electron microscope images, digital photos and line drawings of selected structures. The habitat of the new species and its associated fauna are briefly described. © 2016 Informa UK Limited, trading as Taylor & Francis Group. Fil:Michat, M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Torres, P.L.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v50_n25-26_p1633_Michat http://hdl.handle.net/20.500.12110/paper_00222933_v50_n25-26_p1633_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	adults Argentina chaetotaxy Dytiscinae larvae new species Thermonectus adult beetle color morph comparative study digital image habitat structure identification key larva new species pond taxonomy Argentina Aciliini Coleoptera Dytiscidae Dytiscinae Hygrobiidae Thermonectus
spellingShingle	adults Argentina chaetotaxy Dytiscinae larvae new species Thermonectus adult beetle color morph comparative study digital image habitat structure identification key larva new species pond taxonomy Argentina Aciliini Coleoptera Dytiscidae Dytiscinae Hygrobiidae Thermonectus Michat, Mariano C. Torres, Patricia Laura María Thermonectus tremouillesi sp. nov. (Coleoptera: Dytiscidae: Aciliini): description of the adults and larvae and comparisons with other species of the genus
topic_facet	adults Argentina chaetotaxy Dytiscinae larvae new species Thermonectus adult beetle color morph comparative study digital image habitat structure identification key larva new species pond taxonomy Argentina Aciliini Coleoptera Dytiscidae Dytiscinae Hygrobiidae Thermonectus
description	ABSTRACT: A new species of Aciliini diving beetles, Thermonectus tremouillesi sp. nov., is described on the basis of adult and larval specimens collected in shaded forest ponds in Argentina. The adults are compared with morphologically close species and diagnosed by the following combination of characters: the colour pattern on pronotum and elytra; the sexual sculpture of the female well marked, covering basal fourth to basal half of elytra; the male protibia narrow with dorsal margin slightly prominent; the tergite IX of male with four posterior projections; the median lobe of aedeagus bifid apically; and the parameres bearing a terminal spur. The larvae, for their part, are compared with those of other species of the genus and diagnosed by the colour pattern of the cephalic capsule, the shape of the nasale, the spinulae on the prementum, and several chaetotaxic features. Both adults and larvae are illustrated in detail combining scanning electron microscope images, digital photos and line drawings of selected structures. The habitat of the new species and its associated fauna are briefly described. © 2016 Informa UK Limited, trading as Taylor & Francis Group.
author	Michat, Mariano C. Torres, Patricia Laura María
author_facet	Michat, Mariano C. Torres, Patricia Laura María
author_sort	Michat, Mariano C.
title	Thermonectus tremouillesi sp. nov. (Coleoptera: Dytiscidae: Aciliini): description of the adults and larvae and comparisons with other species of the genus
title_short	Thermonectus tremouillesi sp. nov. (Coleoptera: Dytiscidae: Aciliini): description of the adults and larvae and comparisons with other species of the genus
title_full	Thermonectus tremouillesi sp. nov. (Coleoptera: Dytiscidae: Aciliini): description of the adults and larvae and comparisons with other species of the genus
title_fullStr	Thermonectus tremouillesi sp. nov. (Coleoptera: Dytiscidae: Aciliini): description of the adults and larvae and comparisons with other species of the genus
title_full_unstemmed	Thermonectus tremouillesi sp. nov. (Coleoptera: Dytiscidae: Aciliini): description of the adults and larvae and comparisons with other species of the genus
title_sort	thermonectus tremouillesi sp. nov. (coleoptera: dytiscidae: aciliini): description of the adults and larvae and comparisons with other species of the genus
publishDate	2016
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v50_n25-26_p1633_Michat http://hdl.handle.net/20.500.12110/paper_00222933_v50_n25-26_p1633_Michat
work_keys_str_mv	AT michatmarianoc thermonectustremouillesispnovcoleopteradytiscidaeaciliinidescriptionoftheadultsandlarvaeandcomparisonswithotherspeciesofthegenus AT torrespatricialauramaria thermonectustremouillesispnovcoleopteradytiscidaeaciliinidescriptionoftheadultsandlarvaeandcomparisonswithotherspeciesofthegenus
_version_	1768545726155980800

Thermonectus tremouillesi sp. nov. (Coleoptera: Dytiscidae: Aciliini): description of the adults and larvae and comparisons with other species of the genus

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