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Abstract:

The second- and third instar larvae of Platynectes (s. str.) decemnotatus (Aubé, 1838) are described and illustrated in detail for the first time, with special emphasis on morphometry and chaetotaxy. Larvae of P. decemnotatus can be distinguished from most other Agabinae by having secondary setae on the urogomphus and share with the other known species described in detail the presence of a ventroapical spinula on antennomere 3 and the absence of an occipital suture, natatory dorsal setae on tibia and tarsus and natatory setae on urogomphus. Platynectes decemnotatus larvae differ from larvae of Agabus Leach, 1817, Hydrotrupes Sharp, 1882 (currently in Hydrotrupini), Ilybiosoma Crotch, 1873, Ilybius Erichson, 1832 and the previously described Platynectes species in having a one-segmented urogomphus, a character previously observed only in larvae of Agabinus Crotch, 1873. The second- and third instar larvae of P. decemnotatus differ from those of P. (Agametrus) curtulus (Régimbart, 1899) in having the apical lateroventral process of antennomere 3 protruding (not protruding in P. curtulus). The third-instar larva of P. decemnotatus can also be distinguished from that of P. (Gueorguievtes) decempunctatus (Fabricius, 1775) by the absence of secondary dorsal setae on the tibia. Copyright © 2019 Magnolia Press

Registro:

Documento: Artículo
Título:Description of the second- and third instar larvae of Platynectes (s. str.) decemnotatus (Aubé, 1838) (Coleoptera: Dytiscidae: Agabinae: Platynectini)
Autor:Benetti, C.J.; Michat, M.C.; Alarie, Y.; Hamada, N.
Filiación:Coordenação de Biodiversidade, Programa de Pós-Graduação em Entomologia (PPGEnt), Instituto Nacional de Pesquisas da Amazônia (INPA), Av. André Araújo 2936, Manaus, AM, CEP 69067-375, Brazil
Laboratory of Entomology, IBBEA, CONICET-UBA., DBBE-FCEN, University of Buenos Aires, Argentina
Department of Biology, Laurentian University, Ramsey Lake RoadP3E 2C6, Canada
Palabras clave:Chaetotaxy; Description; Diving beetles; Larvae; Morphometry; Platynectes; animal; beetle; larva; Animals; Coleoptera; Larva
Año:2019
Volumen:4544
Número:3
Página de inicio:381
Página de fin:394
DOI: http://dx.doi.org/10.11646/zootaxa.4544.3.4
Título revista:Zootaxa
Título revista abreviado:Zootaxa
ISSN:11755326
Registro:http://digital.bl.fcen.uba.ar/collection/paper/document/paper_11755326_v4544_n3_p381_Benetti

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Citas:

---------- APA ----------
Benetti, C.J., Michat, M.C., Alarie, Y. & Hamada, N. (2019) . Description of the second- and third instar larvae of Platynectes (s. str.) decemnotatus (Aubé, 1838) (Coleoptera: Dytiscidae: Agabinae: Platynectini). Zootaxa, 4544(3), 381-394.
http://dx.doi.org/10.11646/zootaxa.4544.3.4
---------- CHICAGO ----------
Benetti, C.J., Michat, M.C., Alarie, Y., Hamada, N. "Description of the second- and third instar larvae of Platynectes (s. str.) decemnotatus (Aubé, 1838) (Coleoptera: Dytiscidae: Agabinae: Platynectini)" . Zootaxa 4544, no. 3 (2019) : 381-394.
http://dx.doi.org/10.11646/zootaxa.4544.3.4
---------- MLA ----------
Benetti, C.J., Michat, M.C., Alarie, Y., Hamada, N. "Description of the second- and third instar larvae of Platynectes (s. str.) decemnotatus (Aubé, 1838) (Coleoptera: Dytiscidae: Agabinae: Platynectini)" . Zootaxa, vol. 4544, no. 3, 2019, pp. 381-394.
http://dx.doi.org/10.11646/zootaxa.4544.3.4
---------- VANCOUVER ----------
Benetti, C.J., Michat, M.C., Alarie, Y., Hamada, N. Description of the second- and third instar larvae of Platynectes (s. str.) decemnotatus (Aubé, 1838) (Coleoptera: Dytiscidae: Agabinae: Platynectini). Zootaxa. 2019;4544(3):381-394.
http://dx.doi.org/10.11646/zootaxa.4544.3.4