Description of Tabanus rondoniensis (Diptera: Tabanidae), a new species of horsefly from the State of Rondônia, Brazil

Abstract

The genus Tabanus Linnaeus has a worldwide distribution and is the richest in species; however, it is probably not monophyletic. In the Neotropical Region, its richness is certainly underestimated, mainly due to the large number of species and the absence of recent taxonomic revisions. We describe Tabanus rondoniensis sp. n. from the State of Rondônia, Brazil, based on a conspicuous tabanid species possibly related to the T. nebulosus species group. Diagnosis, discussion and illustrations are also provided.