Abstract
The leafhopper genus Evinus Dlabola is formally transferred from Hecalini to Macrostelini (Deltocephalinae) and is reported from China for the first time. One new species from China, E. macrospinus sp. n. is described and a key to species is provided.While identifying leafhoppers of the grass feeding-tribe Macrostelini from China, the first author found a species which did not belong to any known Chinese genus of the tribe. Upon further investigation it was found to be a new species of Evinus Dlabola, previously known from Iran, Tajikistan and Kyrgyzstan. This genus was originally placed in Hecalini but recently Zahniser and Dietrich (2008) proposed that it might be more closely related to Macrostelini. More recently, an analysis of combined molecular and morphological data,(Zahniser and Dietrich 2010), did not find strong support for the placement of Evinus. Macrostelini was supported in the analyses (included taxa were Balclutha, Macrosteles and Dalbulus) but, depending on the kind of analysis,Evinus was placed either close to members of Chiasmini (a newly descrbed genus from Brazil) or to Stenometopiini, although support for any of these relationships was very low. In the present paper we formally place Evinus in Macrostelini based on morphology (see remarks below), describe the new species, and provide a checklist and key to species of Evinus.
NSTL