Three new species of Daveyoungana Blocker & Webb (Hemiptera: Cicadellidae: Iassinae: Hyalojassini) from Brazil Author Domahovski, Alexandre Cruz Author Cavichioli, Rodney Ramiro text Zootaxa 2019 2019-03-28 4571 4 477 488 journal article 27806 10.11646/zootaxa.4571.4.2 fec6f37f-b17e-4cf7-8688-0b0896be8e9b 1175-5326 10072948 6E24985B-A308-4D35-83D5-5EF71B8DF0EF Key to species of Daveyoungana (males) 1. Ventral process of pygofer with process at midlength of ventral margin ( Figs 8 , 22 ); aedeagus with pair of processes near midlength of shaft and without apical or subapical processes ( Figs 14 , 28 )............................................ 2 - Ventral process of pygofer without process at midlength of ventral margin ( Fig. 43 ); aedeagus without pair of processes near midlength of shaft and with apical or subapical processes ( Fig. 49 ).............................................. 4 2. Ventral process of pygofer with apex not curved ventrad, process at midlength broad and long ( Fig. 8 )........................................................................................ D. blockeri sp. nov. (Brazil–Maranhão) - Ventral process of pygofer with apex curved ventrad, process at midlength slender and short ( Fig. 22 )................... 3 3. Aedeagus with processes at midlength parallel to shaft, shorter than apex of aedeagus ( Blocker & Webb 1992: 13, fig. 11 )................................................................ D. collosa Blocker & Webb (Brazil–Mato Grosso) - Aedeagus with processes at midlength directed laterally and curved dorsally, surpassing aedeagus apex ( Fig. 28 )............................................................................. D. longibrachia sp. nov. (Brazil–Rondônia) 4. Aedeagus with shaft greatly expanded subapically with two pairs of subapical lateral processes and pair of strongly divergent apical processes (Dai & Dietrich 2015: 293, fig. 5D)........................... D. maniforma Dai & Dietrich ( Ecuador ) - Aedeagus with shaft tapered to apex....................................................................... 5 directed dorsally, one pair longer directed ventrally and one small process on anterior surface ( Figs 48, 49 )................................................................................ D. pentacorni sp. nov. (Brazil–Mato Grosso) - Ventral process of pygofer broad, without hook-shaped apex ( Freytag 2018: 489, fig. 3 ); aedeagus with pair of subapical and apical processes directed laterally ( Freytag 2018: 489, fig. 1 )....................... D. guianae Freytag ( French Guiana )