Nymphs of some Nearctic leafhoppers (Homoptera, Cicadellidae) with description of a new tribe

Last (fifth) instar nymphs of several Nearctic leafhoppers (Cicadellidae) are described in detail for the first time. The nymphs represent subfamilies Neocoelidiinae and Deltocephalinae, and deltocephaline tribes Acinopterini, Cochlorhinini, and Athysanini. The tribe Pendarini, apparently endemic to the New World, is described as new, with the genus Pendarus as its type. Besides the type genus, the genera Dorydiella and Paraphlepsius are included in the new tribe. A preliminary key for nymphs of the Nearctic tribes of Deltocephalinae is provided