title: The disrupted pattern of distribution of the genus Hadrurochactas Pocock; evidence of past connections between Amazon and the Brazilian Atlantic forest.
abstract: A new species, Hadrurochactas araripe sp. n. (Chactidae) is described from 'Chapada do Araripe', a 'Brejo type' formation located in the State of Pernambuco, Brazil. The description of the new species confirms a disrupted pattern of distribution presented by the genus Hadrurochactas. This includes species present both in Guiano-Amazon forests and forest islands within the 'Caatingas'. These are xerophytic formations in northeastern Brazil. This new species brings further evidence of a past connection between the Amazonian and Atlantic forests, as already suggested by palaeobotanists.
authors.affiliation: Muséum national d'histoire naturelle, département de systématique et évolution, section arthropodes (arachnologie), 57, rue Cuvier, CP 053, 75005 Paris, France. arachne@mnhn.fr
authors.forename: Wilson R
authors.initials: WR
authors.lastname: Lourenço
mesh_terms: D000818:Animals; D001938:Brazil; D003710:Demography; D004777:Environment; D005260:Female; D008297:Male; D045483:Rivers; D012605:Scorpions / Q000033:anatomy & histology / Q000145:classification / Q000502:physiology*; D014197:Trees; D014329:Tropical Climate