Abstract
AbstractThe Baetodes complex was erected by Lugo-Ortiz and McCafferty based on 2 characters: tarsal claws in the larva with a strong subapical seta and forceps in the male adult with basal segments with a distomedial projection. This complex includes the genera Baetodes, Lugoiops, Mayobaetis, Moribaetis, Prebaetodes, and Spiritiops. It is restricted to the New World, and larvae always live in well-oxygenated streams. A cladistic analysis was conducted for the complex on the basis of a matrix of 16 taxa and 92 morphological characters, all derived from external morphology of adults and larvae. A biogeographic analysis was carried out through Spatial Analysis of Vicariance to establish possible vicariant events that generated this taxonomic complex. The cladistic analysis under implied weights yielded 3 shortest trees, and the Baetodes complex was recovered as monophyletic. The biogeographic analysis reconstructed 3 disjunction nodes when no nodes were removed and 2 more when 1 node was removed. The vicaria...
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