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Abstract:

The larva of the whirligig beetle Enhydrus sulcatus (Wiedemann, 1821) is described and illustrated for the first time, including detailed morphometric and chaetotaxic analyses of the cephalic capsule, head appendages and legs. Larvae of Enhydrus Laporte, 1834 exhibit the characters traditionally recognized as autapomorphies of the family Gyrinidae: well developed cardo, completely divided prementum, presence of lateral abdominal tracheal gills, and presence of four terminal hooks on the pygopod. The egg bursters located on the parietal, the presence of an additional sensorial plate on the third antennomere, and a well developed lacinia may also represent autapomorphies of the family. Enhydrus larvae share with those of the other known Dineutini genera the presence of numerous minute additional setae on the mandible, the presence of additional setae on the cardo, the submedial position of the coxal seta CO12, the absence of the trochanteral seta TR2, and the presence of numerous pore-like additional structures on the ultimate maxillary and labial palpomeres. On the other hand, Enhydrus can be distinguished from the other known dineutine genera by the presence of pore-like additional structures on the basal maxillary and labial palpomeres, the presence of ventral spinulae on the pygopod, and the bare tracheal gills, among other characters. © 2016 Sociedade Brasileira de Entomologia

Registro:

Documento: Artículo
Título:First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)
Autor:Michat, M.C.; Alvarenga, T.M.; Silva, M.S.; Alarie, Y.
Filiación:Universidad de Buenos Aires, Instituto de Biodiversidad y Biología Experimental y Aplicada, Departamento de Biodiversidad y Biología Experimental, Laboratorio de Entomología, Buenos Aires, Argentina
Universidade Estadual de Campinas, Instituto de Biologia, Programa de Doutorado em Biologia Animal, Campinas, SP, Brazil
Universidade Federal de Lavras, Centro de Estudos em Biologia Subterrânea, Departamento de Biologia, Lavras, MG, Brazil
Laurentian University, Department of Biology, Sudbury, Canada
Palabras clave:Adephaga; Dineutini; Morphometry; Neotropics; Sensilla
Año:2016
Volumen:60
Número:3
Página de inicio:231
Página de fin:237
DOI: http://dx.doi.org/10.1016/j.rbe.2016.05.005
Título revista:Revista Brasileira de Entomologia
Título revista abreviado:Rev. Bras. Entomol.
ISSN:00855626
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00855626_v60_n3_p231_Michat

Referencias:

  • Alvarenga, T.M., Silva, F.F., Silva, M.S., Analysis of morphometry and dimorphism in Enhydrus sulcatus (Wiedeman, 1821) (Coleoptera: Gyrinidae) (2011) Neotrop. Biol. Conserv., 6, pp. 178-186
  • Archangelsky, M., Michat, M.C., Morphology and chaetotaxy of the larval stages of Andogyrus seriatopunctatus Régimbart (Coleoptera: Adephaga: Gyrinidae) (2007) Zootaxa, 1645, pp. 19-33
  • Arndt, E., Beutel, R.G., Joost, W., Description of the larva of Andogyrus buqueti (Aubé, 1838) (Coleoptera, Gyrinidae) (1993) Stud. Neotrop. Fauna Environ., 28, pp. 139-144
  • Barth, R., Ueber die pygidialdruese von Enhydrus sulcatus (Wied., 1821) (Coleoptera, Gyrinidae) (1960) Memórias do Inst. Oswaldo Cruz, 58, pp. 135-147
  • Beutel, R.G., Roughley, R.E., Phylogenetic analysis of Gyrinidae based on characters of the larval head (Coleoptera: Adephaga) (1994) Entomol. Scand., 24, pp. 459-468
  • Beutel, R.G., Roughley, R.E., Gyrinidae Latreille, 1810 (2005) Handbook of Zoology (Vol. IV) Arthropoda: Insecta, Part 38, Coleoptera (Vol. 1), Morphology and Systematics (Archostemata, Adephaga, Myxophaga, Polyphaga (partim)), pp. 55-64. , R.G. Beutel R.A.B. Leschen Walter De Gruyter Berlin, New York
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  • Michat, M.C., Gustafson, G.T., Larval morphology and chaetotaxy of Macrogyrus oblongus (Boisduval, 1835) (Coleoptera: Gyrinidae) (2016) Aquatic Insects, 37, pp. 87-98
  • Miller, K.B., Bergsten, J., Phylogeny and classification of whirligig beetles (Coleoptera: Gyrinidae): relaxed-clock model outperforms parsimony and time-free bayesian analyses (2012) Syst. Entomol., 37, pp. 706-746
  • Wiley, E.O., Phylogenetics: The Theory and Practice of Phylogenetic Systematics (1981), John Wiley & Sons New York

Citas:

---------- APA ----------
Michat, M.C., Alvarenga, T.M., Silva, M.S. & Alarie, Y. (2016) . First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae). Revista Brasileira de Entomologia, 60(3), 231-237.
http://dx.doi.org/10.1016/j.rbe.2016.05.005
---------- CHICAGO ----------
Michat, M.C., Alvarenga, T.M., Silva, M.S., Alarie, Y. "First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)" . Revista Brasileira de Entomologia 60, no. 3 (2016) : 231-237.
http://dx.doi.org/10.1016/j.rbe.2016.05.005
---------- MLA ----------
Michat, M.C., Alvarenga, T.M., Silva, M.S., Alarie, Y. "First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)" . Revista Brasileira de Entomologia, vol. 60, no. 3, 2016, pp. 231-237.
http://dx.doi.org/10.1016/j.rbe.2016.05.005
---------- VANCOUVER ----------
Michat, M.C., Alvarenga, T.M., Silva, M.S., Alarie, Y. First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae). Rev. Bras. Entomol. 2016;60(3):231-237.
http://dx.doi.org/10.1016/j.rbe.2016.05.005