Taxonomic notes and redescriptions of some Japanese erythroneurine leafhoppers (Hemiptera, Cicadellidae, Typhlocybinae).

In the Japanese typhlocybine fauna, three already known and three newly recorded species of the genera Anufrievia, Empoascanara, and Anzygina are redescribed and reported with brief notes on their taxonomy and biology: A. akazu (Matsumura), A. ciconia Dworakowska, E. bisignatella (Matsumura) comb. nov., new record, E. kotoshonis (Matsumura) new record, E. sonani (Matsumura) and A. honiloa (Kirkaldy) new record. Male specimens of A. akazu and E. bisignatella are described for the first time.

Recognition of the genera Igutettix Matsumura and Vilbasteana Anufriev (Hemiptera: Cicadellidae: Typhlocybinae), with discovery of a new related genus from Japan.

The dikraneurine genus Igutettix Matsumura and its allies are revised. The definition of Igutettix is corrected and newly proposed on the basis of the true I. pulverosus Matsumura, resurrected from the synonymy with Dikraneura oculata Lindberg. Accordingly, the genus Vilbasteana Anufriev established for the latter species is resurrected as an independent valid genus. The genera Vikabara Dworakowska and Paraafrakra Chiang, Hsu et Knight, are newly synonymized under Igutettix and Vilbasteana, respectively. Igutettix is composed of three species, I. pulverosus Matsumura sp. rev., I. ater (Dworakowska) comb. nov. and I. glossatus (Dworakowska) comb. nov. Vilbasteana comprises two species, V. oculata (Lindberg) comb. rev. and V. fulva (Chiang, Hsu et Knight) comb. nov. Furthermore, a new genus, Cornicola gen. nov. related to Igutettix is described for a new species C. mizuki sp. nov. from Japan.

New genus of dikraneurine leafhopper (Hemiptera: Cicadellidae: Typhlocybinae) from Japan, with description of two new species.

A new genus, Stictotettix gen. nov. and two new species of Dikraneurini, S. cleyerae sp. nov. and S. morishimai sp. nov., are described and illustrated, based on the specimens from Japan. This new genus is unique in the male genital features of the aedeagal atrium. The two new species live on pentaphylacacean trees, Cleyera japonica and Eurya japonica, respectively.