ROIG Sergio Alberto
Los Migadopini (Coleoptera: Carabidae) de américa del sur: Descripción de las estructuras genitales Masculinas y femeninas y consideraciones filogenéticas y biogeografícas
Acta Entomologica Chilena
Sociedad entomologica Chilena
Lugar: Santiago de Chile; Año: 2004 vol. 28 p. 7 - 7
<!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4; mso-font-charset:0; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:-1610611985 1107304683 0 0 159 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-unhide:no; mso-style-qformat:yes; mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; mso-pagination:none; text-autospace:none; font-size:10.0pt; font-family:"Times New Roman","serif"; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast;} .MsoChpDefault {mso-style-type:export-only; mso-default-props:yes; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} .MsoPapDefault {mso-style-type:export-only; margin-bottom:10.0pt; line-height:115%;} @page WordSection1 {size:612.0pt 792.0pt; margin:70.85pt 3.0cm 70.85pt 3.0cm; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.WordSection1 {page:WordSection1;} --> Migadopini is a small group of Carabidae that occurs in South America, Australia, and New Zealand, mostly in the subantarctic areas. Base on phylogenetic considerations some natural groups were proposed within the tribe, postulating that the South American taxa conform two monophyletic units. The objective of the present contribution is update the scarce distributional data of South American Migadopini, redescribes and describes its female and male genitalia, as well develop a phylogenetic analysis of the South American species. The phylogenetic analysis, based on 57 characters of the external morphology and genitalia, shows that the subtribe Migadopina do not constitute a monophyletic group and the subtribe Monolobina is included in it. For this reason the subtribe Monolobina is considered as posterior synonymous of Migadopina. Also, others groups considered previously as basal Migadopini appear in the new analysis as apical in the topology of the cladogram. The analysis of Dispersion Vicariance (DIVA) of the tribe Migadopini shows that there was no dispersion from the Holartic region, and that the ancestor was widely distributed in the paleantartic region of Gondwana as was proposed by Jeannel. The first vicariant event within Migadopini split the northern area of South America from the remaining austral areas. A second vicariant event split the grassland areas of Pampean + Magellan from the forest of New Zealand + Valdivian regions. The historical reconstruccions of DIVA analysis postulate eight dispersion, three of them involving the Magellan and Valdivian areas.