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Abstract
Phylloicus Müller, Citation1880 and Banyallarga Navás, Citation1916 are endemic Neotropical genera of Calamoceratidae. Currently, Phylloicus has 55 extant species, 19 of which are recorded from Brazil, and a fossil species from Dominican amber. In this paper, a new species of Phylloicus is described and illustrated from specimens collected in Amazonas State, Brazil. This new species has peculiar hind wing venation, with vein R4 attached basally to the base of R2+3. Therefore, a modified diagnosis to the genus is presented to include Phylloicus dumasi sp. nov. The new species is somewhat similar to P. paprockii Prather, Citation2003, but can be distinguished from these and other Phylloicus species by the atypical hind wing venation, uniform colouration, and male genitalia with tergum IX produced posteriorly into two wide lobes.
Acknowledgements
We are grateful to Dr Guilherme Muricy (Museu Nacional, Universidade Federal do Rio de Janeiro) for manuscript revision and useful comments. We also thank Igarapés Project group for assistance and help in collecting trips. We sincerely thank two anonymous reviewers for their valuable comments on the manuscript. This study was supported by grants from Fundação de Amparo à Pesquisa do Estado do Amazonas (FAPEAM), Fundação O Boticário, and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) and CNPq provided fellowships, respectively, to A.P.M.S. and J.L.N.