Paragoniosoma, Araujo-Da-Silva & Desouza & Dasilva, 2020

Araujo-Da-Silva, Luiz Paulo, Desouza, Adriano Medeiros & Dasilva, Marcio Bernardino, 2020, Paragoniosomatinae, a new subfamily of Gonyleptidae (Arachnida: Opiliones) based on a new species from the Chapada Diamantina relict cloud forests, Brazil, Zootaxa 4808 (2), pp. 331-349: 335

publication ID

publication LSID


persistent identifier

treatment provided by


scientific name


gen. nov.

Paragoniosoma   gen. nov.

Etymology. From the Greek, para (= at the side) + Goniosoma Perty, 1833   , to emphasize the close relationship of this genus with the subfamily Goniosomatinae   (see discussion for details).

Type species: Paragoniosoma cachaceiro   sp nov., here designated. Genus monotypic.

Diagnosis: Body shape gamma. Dorsal scutum: anterior margin smooth, two pairs of ozopores. Ocularium with one pair of main tubercles. Four areas on opisthosomal scutum, area I and IV divided by shallow longitudinal grooves, area II and III undivided; groove II transversal and almost straight; a pair of large, pointed spines on area III, slightly directed posteriorly, white thick serous layer on area II and III. Pedipalps long and robust, femur with a strong mesal seta, trochanter and femur with short and strong ventral tubercles, tibia and tarsus with long and strong ectal and mesal setae. Legs long, coxa IV with strong and pointed ectal apophysis, other appendages unarmed; tarsal process very large, and tarsus smooth. Penis with a large ventral plate with concave distal margin; three pairs of macrosetae C, two of E, one large D, two large B and two horizontal pairs of rows of macrosetae A. Glans with a ventral process with flabellum and a dorsal process.

Distribution: Altitudinal cloud forests of Chapada Diamantina mountains, Bahia state, Brazil.