TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited. Accepted by J. Moulton: 23 Sept. 2008; published: 31 Oct. 2008 1 ZOOTAXA ISSN 1175-5326 (print edition) ISSN 1175-5334 (online edition) Copyright © 2008 · Magnolia Press Zootaxa 1920: 1–28 (2008) www.mapress.com/ zootaxa/ Eleven new species of the genus Cluzobra Edwards (Diptera, Mycetophilidae, Sciophilinae) from the Atlantic Forest of Brazil DALTON DE SOUZA AMORIM 1,2 & SARAH SIQUEIRA OLIVEIRA 1,3 1 Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandei- rantes 3900, 14.040–901 Ribeirão Preto SP, BRAZIL 2 dsamorim@usp.br 3 Pós–graduação em Entomologia Abstract Eleven new species of the sciophiline genus Cluzobra Edwards are described and illustrated – Cluzobra triocellata, sp.n., Cluzobra accola, sp.n., Cluzobra claripennis, sp.n., Cluzobra papaveroi, sp.n., Cluzobra coptolithus, sp.n., Clu- zobra vockerothi, sp.n., Cluzobra sapiranga, sp.n., Cluzobra fluminense, sp.n., Cluzobra fritzmuelleri, sp.n., Cluzobra spinata, sp.n., Cluzobra elpidia, sp.n. Additional specimens of C. fuscipennis Edwards, C. plaumanni Edwards, and C. binocellaris (Edwards) have been identified, extending the distribution range of these species. The species were identi- fied and described based on 173 specimens at different latitudes along the Atlantic Forest in eastern Brazil and northern Argentina. The position of the new species in the groups of species proposed for the genus in the literature is considered. Three areas of endemism are identified for the group, one from southern Brazil, northern Argentina and Paraguay north- wards to areas at higher altitudes in the States of Minas Gerais and Rio de Janeiro, one from southern Bahia to the extreme north of the Atlantic Forest, in the State of Rio Grande do Norte, and one in west State of São Paulo, extending west and northwards into the states of Mato Grosso do Sul and Goiás. This paper raises the number of known Cluzobra to 41 species. Key words: Cluzobra, Diptera, Brazil Introduction The family Mycetophilidae in the Neotropical region includes about 50 genera and close to 1000 species (Papavero, 1978, Amorim & Oliveira in prep). In the phylogeny proposed by Amorim & Rindal (2007) the family composes with Lygistorrhinidae the sister group of the Keroplatoidea (including Bolitophilidae, Dito- myiidae, Diadocidiidae and Keroplatidae), the Sciaridae being close to the base of the Mycetophiliformia, dif- ferently from other reconstructions (e.g., Hennig 1973, Matile, 1990, Chandler 2002, Hippa & Vilkamaa 2005, 2006). Most recent classifications accept Sciophilinae, Gnoristinae, Mycomyiinae, Leiinae, Manotinae, Allactoneurinae and Mycetophilinae as subfamilies of Mycetophilidae. The Sciophilinae sensu Vockeroth (1981) have been demonstrated to be paraphyletic in relation to the Mycetophilinae (Söli, 1997, Tozoni, 1998). The Sciophilinae s.s. include 36 genera, most with macrotrichia on the wing membrane. Within the subfamily, there is a clade showing a gradual loss of M 4 . Megalopelma Enderlein, Morganiella Tonnoir & Edwards, and Sciophila Meigen have M 4 interrupted basally, while Acne- mia Winnertz, Afrocnemia Matile, Cluzobra Edwards, Monoclona Mik, and Parvicellula Marshall have M 4 entirely absent, and Azana Walker, Neoaphelomera Miller, Neotrizygia Tonnoir & Edwards, Paratryzigia Tonnoir and Trizygia Skuse have both the medial and cubital forks incomplete and an isolated vein in between