title: A new highly specialized cave harvestman from Brazil and the first blind species of the genus: Iandumoema smeagol sp. n. (Arachnida, Opiliones, Gonyleptidae).
abstract: A new species of troglobitic harvestman, Iandumoema smeagol sp. n., is described from Toca do Geraldo, Monjolos municipality, Minas Gerais state, Brazil. Iandumoema smeagol sp. n. is distinguished from the other two species of the genus by four exclusive characteristics - dorsal scutum areas with conspicuous tubercles, enlarged retrolateral spiniform tubercle on the distal third of femur IV, eyes absent and the penial ventral process slender and of approximately the same length of the stylus. The species is the most highly modified in the genus and its distribution is restricted only to caves in that particular area of Minas Gerais state. The type locality is not inside a legally protected area, and there are anthropogenic impacts in its surroundings. Therefore, Iandumoema smeagol sp. n. is vulnerable and it must be considered in future conservation projects.
authors.affiliation: Departamento de Zoologia, Instituto de Biociências da Universidade de São Paulo, Rua do Matão, travessa 14, 321, 05508-090, São Paulo, SP, Brazil.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Pinto-da-Rocha
authors.affiliation: Departamento de Ecologia e Biologia Evolutiva, Universidade Federal de São Carlos, Rodovia Washington Luis, km 235, PO Box 676, 13565-905, São Carlos, SP, Brazil; Programa de Pós-graduação em Biologia Comparada, Universidade de São Paulo, Avenida dos Bandeirantes 3900, 14040-901, Ribeirão Preto, SP, Brazil.
authors.forename: Rafael
authors.initials: R
authors.lastname: da Fonseca-Ferreira
authors.affiliation: Departamento de Ecologia e Biologia Evolutiva, Universidade Federal de São Carlos, Rodovia Washington Luis, km 235, PO Box 676, 13565-905, São Carlos, SP, Brazil.
authors.forename: Maria Elina
authors.initials: ME
authors.lastname: Bichuette
keywords: Endemism; Espinhaço Supergroup; Minas Gerais state; limestone; troglobitic