Abstract
The leafhopper genus Nesoclutha, a known vector of plant pathogens, currently comprises four species worldwide. In this paper, one new species added from China, N. concavipenis sp. nov., is described and one new record, N.phryne (Kirkaldy) (= N. pallida Evans) from China is given. A checklist and a key to all known species in the genus are provided. Vector leafhoppers have the potential to reduce production of economic plants through their natural spread of pathogens (Nielson, 1968). Nesoclutha ohscura Evans (Deltocephalinae: Macrostelini), was first reported as a vector of a plant virus related to grasses and cereals by Grylls (1963). It is a vector of cereal chlorotic mottling rhab-dovirus, chloris striate mosaic geminivirus, paspalum striate mosaic geminivirus and the causative agent of maize wallaby ear (Grylls, 1963). It transmits viruses to wheat, oat, barley, corn and other grasses (Nielson, 1968).
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