Two new species of Hyalojassini (Hemiptera: Cicadellidae: Iassinae) to the genera Comanopa Blocker and Gehundra Blocker, description of the male of G. sordida (Baker) and key to species

Alexandre C Domahovski

doi:10.5852/ejt.2021.746.1323

Abstract

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.

Highlights

Cicadellidae Latreille, 1825 is the largest family of Hemiptera Linnaeus, 1758 and one of the most successful radiations of plant-feeding insects known as leafhoppers, currently classified into 25 subfamilies (Krishnankutty et al 2016)
The genus Comanopa can be recognized by the forewing with vein separating appendix and first apical cell incomplete; the pygofer with process arising near apex, extending anterad, similar to Penestragania Beamer & Lawson, 1945; the subgenital plates simple, slightly reduced in size, similar to Momoria Blocker, 1979; the style reduced in length; and the connective like a narrow semicircular band (Blocker 1979)
In the new species of Comanopa proposed the process of pygofer differs from the process present in species of Penestragania, because it is entirely fused to the lateral lobe of pygofer, resembling more an integument thickening than a process, whereas in species of Penestragania this process is separated from the lateral lobe by most of its length

Summary

Introduction

Cicadellidae Latreille, 1825 is the largest family of Hemiptera Linnaeus, 1758 and one of the most successful radiations of plant-feeding insects known as leafhoppers, currently classified into 25 subfamilies (Krishnankutty et al 2016). The subfamily Iassinae Walker, 1870 is distributed worldwide and is one of the most diverse subfamilies of Cicadellidae, including more than 2000 species currently placed in 184 genera and 12 tribes (Dai et al 2015; Krishnankutty et al 2016; Domahovski 2020; Dietrich et al 2020). Most of the of hyalojassine species are described from the Neotropical region (more than 70% of the known species), the real diversity of the tribe remains poorly known, especially in Brazil, where only 12 genera and 21 species were previously recorded (Defea & Paradell 2019; Domahovski & Cavichioli 2019b, 2019c; Domahovski 2020)

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