The systematics of the Neotropical caddisfly genus GrumichellaMüller (Leptoceridae: Grumichellinae) are reviewed. Diagnoses, descriptions and illustrations are provided for four previously described species, G. aequiunguisFlint, 1983, G. flaveola (Ulmer, 1911), G. pulchella (Banks, 1910) and G. rostrataThienemann, 1905, and nine new species: G. blahniki sp. nov. (Peru), G. boraceia sp. nov. (Brazil), G. cressae sp. nov. (Venezuela), G. jureia sp. nov. (Brazil), G. leccii sp. nov. (Brazil), G. muelleri sp. nov. (Brazil), G. paprockii sp. nov. (Brazil), G. parati sp. nov. (Brazil) and G. trujilloi sp. nov. (Venezuela). The monophyly of the genus is corroborated (16 synapomorphies) and the phylogenetic relationships of its included species, based on analysis of 66 adult, larval, and pupal characters, are inferred as (G. aequiunguis ((G. boraceiae (G. leccii, G. parati)) (G. rostrata ((G. flaveola, G. pulchella) (G. muelleri, G. paprockii)) (G. jureia (G. trujilloi (G. cressae, G. blahniki)))))). A taxonomic key to the males of the species is presented.
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We are grateful to curators Dr Oliver S. Flint Jr (Smithsonian Institution, NMNH), Dr Eliana Cancello and Dr Sonia Casari (MZUSP), Dr Nelson Ferreira Jr and Dr Jorge Nessimian (UFRJ), and Dr Ana Maria Pes and Dr Neusa Hamada (INPA) for the loan of specimens examined in this study for comparative analysis. We also thank Dr Roger Blahnik (UMSP), Dr Dalton Amorim (USP), Dr Henrique Paprocki (PUC-MG), Dr Jorge Nessimian (MNRJ) and Dr Pit?goras Bispo (UNESP) for their helpful comments and suggestions on the manuscript. We also thank Chico Mendes Institute for Biodiversity Conservation (ICMBio) for issuing collecting permits. This work was supported by two CNPq fellowships (Brazilian Council of Scientific and Technological Development, 141367/2004-0 and SWE 201382/2007-5) to A.R.C. This work was also supported by Foundation for Research Support of the State of Bahia (FAPESB, grant 5716/2009), and by National Council for Scientific and Technological Development (CNPq, grant 473703/2010-6). The work was also supported by National Science Foundation grant DEB0117772 to R.W.H. A.R.C. thanks CNPq fellowships (141367/2004-0, SWE 201382/2007-5, 243238/ 2014) and the team of Laborat?rio de Entomologia Aqu?tica, USP (Dr Fabio Roque, Dr Humberto Mendes, Dr Lucas Lecci, Dr Luis Carlos de Pinho and Dr Rodolfo Mariano), for friendship and help in the field and in the laboratory.
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- Phylogenetic relationships