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Abstract:

The phylogenetic relationships of the diving beetle (Dytiscidae) genus Leuronectes Sharp are revised based on a cladistic analysis of seven Agabinae genera and 54 morphological and chaetotaxic characters from larvae. For this purpose, larvae of L. curtulus Régimbart are described and illustrated in detail for the first time, with particular emphasis on morphometry and chaetotaxy. The results show that Leuronectes is well placed within Agabinae based on the absence of natatory setae on tibia and tarsus in instars II and III, the urogomphus composed of two urogomphomeres, and the absence of secondary setae on urogomphus. Leuronectes is resolved as part of a basal polytomy along with Platynectes Régimbart and a clade formed by the remaining agabine genera. Leuronectes shares with Platynectes the setae UR2, UR3 and UR4 not inserted contiguously, with Platambus Thomson the anterolateral lobes of frontoclypeus not projected beyond anterior margin, with Hydrotrupes Sharp the seta AB9 inserted dorsolaterally, and with Ilybius Erichson the seta LA10 inserted submedially. Leuronectes is unique within Agabinae in having the apical lateroventral process of the third antennomere not protruding and additional ventroapical pores on third antennomere, and is unique within the dytiscid genera studied in having the seta LA12 inserted submedially and one additional spine-like seta inserted on the lateral margin of abdominal segment VIII. © Koninklijke Brill NV, Leiden, 2009.

Registro:

Documento: Artículo
Título:Phylogenetic relationships of Leuronectes Sharp (Coleoptera: Dytiscidae: Agabinae) based on larval morphology and chaetotaxy
Autor:Michat, M.C.; Archangelsky, M.
Filiación:CONICET, Laboratorio de Entomología, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Av. Int. Güiraldes s/n, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
CONICET - LIESA, Laboratorio de Investigaciones en Ecología y Sistemática Animal, Universidad Nacional de La Patagonia San Juan Bosco, Sarmiento 849, 9200, Esquel, Chubut, Argentina
Palabras clave:Chaetotaxy; Diving beetles; Euronectes; Larvae; Morphometry; Phylogenetic relationships; Coleoptera; Dytiscidae; Hydrotrupes; Hygrobiidae; Ilybius; Platambus; Platynectes
Año:2009
Volumen:40
Número:2
Página de inicio:209
Página de fin:228
DOI: http://dx.doi.org/10.1163/187631209X440078
Título revista:Insect Systematics and Evolution
Título revista abreviado:Insect Syst. Evol.
ISSN:1399560X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1399560X_v40_n2_p209_Michat

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Citas:

---------- APA ----------
Michat, M.C. & Archangelsky, M. (2009) . Phylogenetic relationships of Leuronectes Sharp (Coleoptera: Dytiscidae: Agabinae) based on larval morphology and chaetotaxy. Insect Systematics and Evolution, 40(2), 209-228.
http://dx.doi.org/10.1163/187631209X440078
---------- CHICAGO ----------
Michat, M.C., Archangelsky, M. "Phylogenetic relationships of Leuronectes Sharp (Coleoptera: Dytiscidae: Agabinae) based on larval morphology and chaetotaxy" . Insect Systematics and Evolution 40, no. 2 (2009) : 209-228.
http://dx.doi.org/10.1163/187631209X440078
---------- MLA ----------
Michat, M.C., Archangelsky, M. "Phylogenetic relationships of Leuronectes Sharp (Coleoptera: Dytiscidae: Agabinae) based on larval morphology and chaetotaxy" . Insect Systematics and Evolution, vol. 40, no. 2, 2009, pp. 209-228.
http://dx.doi.org/10.1163/187631209X440078
---------- VANCOUVER ----------
Michat, M.C., Archangelsky, M. Phylogenetic relationships of Leuronectes Sharp (Coleoptera: Dytiscidae: Agabinae) based on larval morphology and chaetotaxy. Insect Syst. Evol. 2009;40(2):209-228.
http://dx.doi.org/10.1163/187631209X440078