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Ancient Neotropical origin and recent recolonisation: Phylogeny, biogeography and diversification of the Riodinidae (Lepidoptera: Papilionoidea)

AutorEspeland, Marianne; Talavera, Gerard ; Pierce, Naomi E.
Fecha de publicaciónnov-2015
CitaciónV Encuentro de Lepidoptera Neotropicales (2015)
ResumenWe present the first dated higher-level phylogenetic and biogeographic analysis of the butterfly family Riodinidae. This family is distributed worldwide, but more thang0o/o of the c. 1500 species are found in the Neotropics, while the c. 120 Old World species are concentrated in the Southeast Asian tropics, with minor Afrotropical and Australasian tropical radiations, and few temperate species. Morphologically based higher classification is partly unresolved, with genera incompletely assigned to tribes. Using 3666bp from one mitochondrial and four nuclear markers for each of 23 outgroups and 178 riodinid taxa representing all subfamilies, tribes and subtribes, and 98 out of 145 described genera of riodinids, we estimate that Riodinidae split from Lycaenidae about 96 Mya in the mid-Cretaceous and started to diversifu about 8lMya, The Riodinidae are monophyletic and originated in the Neotropics, most likely in lowland proto- Amazonia. Neither the subfamily Euselasiinae nor the Nemeobiinae are monophyletic as currently constituted. The enigmatic, monotypic Neotropical genera Styx and Corrachia (most recently treated in Euselasiinae: Corrachiini) are highly supported as derived taxa in the Old World Nemeobiinae, with dispersal most likely occuring across the Beringia land bridge during the Oligocene. Styx and Cowachia, together with all other nemeobiines, are the only exclusively Primulaceae-feeding riodinids. The steadily increasing proliferation of the Neotropical Riodininae subfamily contrasts with the decrease in diversification in the Old World, and may provide insights into factors influencing the diversification rate of this relatively ancient clade of Neotropical insects.
DescripciónEspeland, Marianne et al.-- Trabajo presentado en el V Encuentro de Lepidoptera Neotropicales "Diversidad, Evolución, Ecología, Conservación" (ELEN 2015), celebrado en Tucumán (Argentina) del 16 al 20 de noviembre de 2015.
URIhttp://hdl.handle.net/10261/154775
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