title: A new species of Tenuipalpus sensu stricto (Acari: Tenuipalpidae) from Brazil, with ontogeny and a key to the known species.
abstract: The Cerrado is the second largest Brazilian biome, and is considered to be a "hotspot" due the great concentration of endemic species and high rate of deforestation. Surveys of the mite fauna present in this biome have revealed a great number of new species. In this paper, we describe Tenuipalpus spinosaurus sp. nov. (Acari: Tenuipalpidae), a new species of Tenuipalpus sensu stricto, from adult females, deutonymphs, protonymphs, larvae and eggs, collected on Terminalia argentea (Combretaceae), from the Cerrado in Brazil. Females of this new species bear a prominent longitudinal crest on the opisthosoma. The ontogenetic changes in the idiosoma and leg chaetotaxy of all stages are presented. A key to the world species of Tenuipalpus sensu stricto is provided.
authors.affiliation: Programa de Pós Graduação em Biologia Animal, UNESP-Universidade Estadual Paulista, campus de São José do Rio Preto, São Paulo, Brazil; Email: elizeu_unesp@yahoo.com.br.
authors.forename: Elizeu B
authors.initials: EB
authors.lastname: Castro
authors.affiliation: Depto. de Zoologia e Botânica, UNESP, Rua Cristovão Colombo, 2265, Jardim Nazareth, São José do Rio Preto, São Paulo, Brazil, 15054-000, CNPq-Brazil researcher.; Email: reinaldo@ibilce.unesp.br.
authors.forename: Reinaldo J F
authors.initials: RJ
authors.lastname: Feres
authors.affiliation: Systematic Entomology Laboratory (SEL), Agricultural Research Service (ARS), United States Department of Agriculture (USDA), Beltsville Agricultural Research Centre (BARC), Maryland, 20705, USA.; Email: ron.ochoa@ars.usda.gov.
authors.forename: Ronald
authors.initials: R
authors.lastname: Ochoa
authors.affiliation: Electron and Confocal Microscopy Unit (ECMU), ARS-USDA, BARC, Beltsville, Maryland, 20705, USA.; Email: gary.bauchan@ars.usda.gov.
authors.forename: Gary R
authors.initials: GR
authors.lastname: Bauchan
mesh_terms: D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D001938:Brazil; D005260:Female; D007814:Larva / Q000033:anatomy & histology / Q000145:classification / Q000254:growth & development; D008297:Male; D008925:Mites / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D009929:Organ Size; D010935:Plant Diseases / Q000469:parasitology; D029766:Terminalia / Q000469:parasitology