Taxonomic revision and cladistic analysis of ghost spiders of the genus Tafana Simon, 1903 (Araneae: Dionycha, Anyphaenidae), with the descriptions of twelve new species Author De Oliveira, Luiz Fernando M. 06C42876-2925-4007-A19D-053BD0058F25 Laboratório de Coleções Zoológicas, Instituto Butantan - Av. Vital Brazil, 1500, 05503 - 900, São Paulo, SP, Brazil. & Instituto de Biociências, Universidade de São Paulo, Rua do Matão, 321, 05508 - 090, São Paulo, SP, Brazil. luiz.moura.lfm@gmail.com Author Brescovit, Antonio Domingos D5B81D79-AFAE-47B1-8A6E-DAB448A24BCC Laboratório de Coleções Zoológicas, Instituto Butantan - Av. Vital Brazil, 1500, 05503 - 900, São Paulo, SP, Brazil. antonio.brescovit@butantan.gov.br text European Journal of Taxonomy 2021 2021-03-31 742 1 77 http://dx.doi.org/10.5852/ejt.2021.742.1291 journal article 7531 10.5852/ejt.2021.742.1291 62f9dc57-bade-4fbc-8af7-f92ff107593c 2118-9773 4655404 23424EC3-8440-4C72-AD9E-C1EC3087F7CA The silhavyi group Diagnosis Males of this group can be recognized by having the apophysis at the base of the embolus curved and laminar ( Figs 9C–D , 22C , 23B , 26A–B ); the sperm duct forming an inverted ‘S-shape’ in the male palp not expanded, with secondary looping in the middle of the tegulum ( Figs 9A , 22C , 25C ). The females can be recognized by having the atrium wide and copulatory ducts large in the anterior region ( Figs 22G , 26D , 33D–F ). Included species Tafana silhavyi ( Caporiacco, 1955 ) , T. chimire sp. nov. , T. maracay sp. nov. , T. arawak sp. nov. , T. pettieri sp. nov.