Three Japanese spider species, which have been placed in the genus
Zilla, are moved to the genus
Eriophora, based on cladistic analysis. Three known species,
Eriophora sagana (Bösenberg & Strand 1906) comb. nov.,
E. sachalinensis (S. Saito 1934) comb. nov., and
E. aurea (S. Saito 1934) comb. nov. are redescribed and one new species,
E. yanbaruensis sp. nov., is described from Okinawajima Island, Japan. On the other hand,
Aranea sagana Bösenberg & Strand 1906 is revived from a homonym of
Aranea sagana (Keyserling 1893).
Eriophora migra Zhu & Song 1994 is newly synonymized with
Eriophora sagana (Bösenberg & Strand 1906) comb. nov. and
Eriophora flava Zhu & Song 1994 is newly synonymized with
Eriophora sachalinensis (S. Saito 1934) comb. nov.
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