Abstract
Two new microleafhopper genera of Empoascini within the subfamily Typhlocybinae (Hemiptera: Cicadellidae), Condensella Xu, Dietrich & Qin gen. n., based on the type species C. filamenta Xu, Dietrich & Qin sp. n., and Endogena Xu, Dietrich & Qin gen. n., based on the type species E. flava Xu, Dietrich & Qin sp. n., are described from southern China and Thailand. Male habitus photos and illustrations of male genitalia of the two new species are provided. Comparative notes on related genera are provided. Phylogenetic relationships and the status of genus groups within the tribe are also discussed.
Highlights
Empoascini is a tribe of the microleafhopper subfamily Typhlocybinae
Members of this tribe have been assigned to three informal generic groups (Qin et al, 2011; Xu et al, 2015, 2016), one of which, the Alebroides group, is characterized by the vein CuA in the hind wing branched preapically
The Oriental Region harbors the richest biodiversity of the Alebroides group, with 23 genera reported so far, including 16 genera known in the Chinese fauna
Summary
Empoascini is a tribe of the microleafhopper subfamily Typhlocybinae. It comprises 89 previously described genera and more than 1000 species worldwide (Xu et al, 2017), including widespread, polyphagous agricultural pests such as the Potato Leafhopper, Empoasca fabae (Harris) (Chasen et al, 2014) and Cotton Leafhopper Amrasca biguttula biguttula (Ishida) (Saeed et al, 2015), as well as pests that appear to be monophagous on one particular crop, such as the Tea Green Leafhopper, Empoasca onukii Matsuda (Qin et al, 2015). Knowledge of the world fauna of Empoascini remains incomplete and new genera and species continue to be discovered at a rapid pace. Members of this tribe have been assigned to three informal generic groups (Qin et al, 2011; Xu et al, 2015, 2016), one of which, the Alebroides group, is characterized by the vein CuA in the hind wing branched preapically. Despite recently published papers treating the Alebroides genus group of China and South Asia, recent sampling in this region suggests that the fauna remains inadequately surveyed. The aim of this study is to provide more information for comprehensive phylogenetic analysis of this tribe in future studies
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