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Comanopa Blocker, 1979 and Gehundra Blocker, 1976 are small and poorly known genera of leafhoppers, previously comprising four and five species, respectively. In this study, two new species are proposed: Comanopa mananciensis sp. nov. from the state of Paraná, Southern Brazil, and Gehundra cristalinensis sp. nov. from the state of Mato Grosso, Centralwestern Brazil. The male of Gehundra sordida (Baker, 1900) is studied by the first time. Detailed descriptions and illustrations of males and females are provided and keys to males of Comanopa and Gehundra are given.
Two new Brazilian sharpshooter species of the genus Tretogonia Melichar, 1926 are described and illustrated: Tretogonia diminuta sp. nov. and T. elegantula sp. nov., both from the State of Paraná. A redescription of T. dentalis Emmrich, 1988 is provided based on a male from the State of Mato Grosso do Sul. This is the first Brazilian record of T. dentalis, a species originally described from Paraguay. Photographs and line drawings are provided for the three species, as well as notes on the taxonomy and biology of the genus.
The Neotropical fauna of Gyponini is very diverse and still poorly known. Many new species have characters that do not fit with the currently recognized genera, which makes it necessary to propose new ones. Herein, we propose two new Brazilian genera of Gyponini: Acuthana gen. nov., based on A. transgressa gen. et sp. nov. from the State of Mato Grosso, Central-West Brazil and Rectapona gen. nov. based on R. nigrifascia gen. et sp. nov. from the states of Paraná and São Paulo, South and Southeast Brazil, respectively. Diagnosis, detailed description and illustrations of male and female are provided for each taxon, as well as comparisons with closely related genera.
A new monotypic genus of Iassinae Walker, 1870 tribe Hyalojassini Evans, 1972 is proposed based on Guaricicana borgesi gen. et sp. nov. from the states of Paraná and Rio de Janeiro, southern and southeastern Brazil, respectively. Detailed descriptions and illustrations of males and females are provided, as well as comparisons with the presumably more closely related genus, Daveyoungana Blocker & Webb, 1992.
The remarkable sharpshooter Prodigiella silvanoi gen. et sp. nov. is described and illustrated (including the external form, color, male and female terminalia) from the Atlantic Forest of southern and southeastern Brazil (states of Paraná and Rio de Janeiro). The new genus can be distinguished from other Neotropical genera of the Cicadellini by a combination of various morphological features, including an asymmetrical aedeagus with a bifid shaft and peculiar basal and apical processes and ovipositor valvula II distinctly expanded beyond basal curvature, its dorsal margin with 35–40 teeth, and ventral margin without preapical prominence. A discussion comparing Prodigiella with superficially similar taxa of the genera Macugonalia Young, 1977, Ruppeliana Young, 1977, and Versigonalia Young, 1977 is provided. The discovery of this peculiar new genus indicates that much collecting work in the remaining parts of the Atlantic Forest is clearly and urgently needed.