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, M.C., Torres, P.L.M.
Formato:	JOUR
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:	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

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spelling	todo:paper_00222933_v50_n25-26_p1633_Michat2023-10-03T14:30:46Z Thermonectus tremouillesi sp. nov. (Coleoptera: Dytiscidae: Aciliini): description of the adults and larvae and comparisons with other species of the genus Michat, M.C. Torres, P.L.M. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, M.C. Torres, P.L.M. 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.
format	JOUR
author	Michat, M.C. Torres, P.L.M.
author_facet	Michat, M.C. Torres, P.L.M.
author_sort	Michat, M.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
url	http://hdl.handle.net/20.500.12110/paper_00222933_v50_n25-26_p1633_Michat
work_keys_str_mv	AT michatmc thermonectustremouillesispnovcoleopteradytiscidaeaciliinidescriptionoftheadultsandlarvaeandcomparisonswithotherspeciesofthegenus AT torresplm thermonectustremouillesispnovcoleopteradytiscidaeaciliinidescriptionoftheadultsandlarvaeandcomparisonswithotherspeciesofthegenus
_version_	1807324113522393088

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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