A new Aphid genus and species (Hemiptera: Aphididae: Macrosiphini) living on ferns in Costa Rica and Mexico

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A new Aphid genus and species (Hemiptera: Aphididae: Macrosiphini) living on ferns in Costa Rica and Mexico

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Título: A new Aphid genus and species (Hemiptera: Aphididae: Macrosiphini) living on ferns in Costa Rica and Mexico
Autor: Pérez Hidalgo, Nicolás;Nieto Nafría, Juan M.;Martinez Torres, David;Villalobos Muller, William
Facultad/Centro: Facultad de Ciencias Biologicas y Ambientales
Area de conocimiento: Zoologia
Resumen: Aphid species colonising ferns belong to the subfamily Aphidinae (Hemiptera: Aphididae) and the majority of these to the tribe Macrosiphini. A new genus in this tribe and its type species: Gibbomyzus pteridophytorum new genus, new species, are established. Apterous and alate viviparous females are described from specimens collected on Blechnum buchtienii Rosenstock (Blechnaceae) in Costa Rica and on Pteridium aquilinum (Linnaeus) Kuhn (Dennstaedtiaceae) and an unidentified fern in Mexico. The taxonomic validity of the two new taxa is discussed based on morphological and molecular data. Morphologically, the new genus is compared with genera with swollen siphunculi recorded in the New World, and also with genera living on ferns anywhere in the world. The identification key by Blackman and Eastop to aphids living on ferns is modified. Molecular analyses were carried out on the sequences of a fragment of the mitochondrial gene encoding for cytochrome c oxidase subunit 1 and of a fragment of the nuclear gene encoding elongation factor-1 alpha. In both analyses, G. pteridophytorum new species sequences showed considerable divergence (,4% or more) from those of 23 other species from diverse genera of Macrosiphini, supporting the conclusions of the morphological study and justifying the establishment of the new genus
Descripción física: P. 509-520
Revisión por pares: SI
Editor: Entomological society of Canada
Datos: Canada Entomologist, 2013,vol. 145,n. 5
URI: http://hdl.handle.net/10612/5112
Fecha: 2013-10-20
Tipo: info:eu-repo/semantics/article
Materia: Biología
Ecología. Medio ambiente
Zoología
Palabras clave: Aphididae
Aphid
Costa Rica
Hemiptera
México
Derechos de acceso: info:eu-repo/semantics/openAccess
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