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A review of the Chilean spider genus Olbus, with notes on the relationships of the Corinnidae (Arachnida, Araneae)

2000; Brill; Volume: 31; Issue: 4 Linguagem: Inglês

10.1163/187631200x00480

1876-312X

Martı́n J. Ramı́rez, Lara Lopardo, Alexandre B. Bonaldo,

Scarabaeidae Beetle Taxonomy and Biogeography

Abstract The Chilean spider genus Olbus is revised to include five species: Olbus sparassoides (Nicolet), and four new species, O. jaguar, O. nahuelbuta, O. eryngiophilus, and O. krypto. The genus is diagnosed by the presence of one apical thickened seta on the palpal tarsus. Differing from the subfamilies Corinninae, Castianeirinae and Trachelinae, the median apophysis is retained on the male palpal bulb, as occurs also in the corinnid genera Ianduba Bonaldo, Mandaneta Strand, Procopius Thorell and Pseudocorinna Simon. Olbus and these genera are placed in Corinnidae incertae sedis. A particular arrangement of enlarged cylindrical gland spigots, at least three on posterior median spinnerets, and two on posterior laterals, is proposed as a synapomorphy of Corinnidae. O. krypto, only known from a male with quite divergent characters, is placed provisionally in the genus.