A new species of Gypona from southern Brazil (Hemiptera: Cicadellidae: Gyponini)

Gypona (Marganalana) masamunesp. nov. is described and illustrated based on specimens from Brazil, state of Paraná. This species can be distinguished from the others of the genus by the following combination of characters: 1) connective with stalk apex oriented anteriorly; 2) style, in lateral view, L-shaped and broader subapically; apex tapered and acute; 3) aedeagus slender, curved dorsally, with long and slender processes arising on each side of shaft near the base, as long as aedeagus shaft; shaft without apical processes. A key to the six subgenera of Gypona is provided.

本文基于采自巴西巴拉那州的标本，对额突叶蝉属（Gypona）玛萨穆内亚属（Marganalana）马萨穆内新种（sp. nov.）进行了详细描述与形态图解。该种可通过以下特征组合与该属内其他物种相区分：1）连索的柄端指向前方；2）侧面观下阳基侧突呈L形，亚端部较宽大，端部渐狭且尖锐；3）阳茎细长，向背面弯曲，近基部处于阳茎干两侧各生有一根细长的突起，其长度与阳茎干相当；阳茎干无端突。本文还提供了额突叶蝉属（Gypona）6个亚属的分类检索表。