Revision of the genus Typhlocybella Baker, 1903 (Hemiptera: Cicadellidae: Typhlocybinae: Dikraneurini) and description of a new species from Argentina Author Catalano, María Inés Author Paradell, Susana Liria Author Lenicov, Ana María Marino Remes text Zootaxa 2012 3164 57 63 journal article 45631 10.5281/zenodo.213239 2ea2341d-b251-448d-ae18-20d7a2410e61 1175-5326 213239 Key to males of genus Typhlocybella Baker (excluding T . minuta (DeLong)) 1. Male pygofer without processes. Aedeagus with pair of processes not extending well beyond apex of shaft............... 2 1’. Male pygofer with processes. Aedeagus with pair of ventral processes extending well beyond apex of shaft.............. 4 2. Male pygofer with notch in middle of posterior margin........................................................ 3 2’. Male pygofer without notch, with tiny spines on posterodorsal margin. Aedeagus with pair of lateral processes ( Fig. 3 and 4 ). Crown with pair of dark brown spots............................................ T. maculata Caldwell y Martorell 3. Aedeagus with pair of ventral processes; aedeagal apex bifurcated ( Fig. 12 ).................. T. parva . Ruppel y DeLong 3’. Aedeagus with pair of lateral processes projected dorsally, apex curved abruptly upward ( Fig. 6 )........... T. minima Baker 4. Male pygofer with dorsal spine-like process on caudal margin; aedeagus and aedeagal processes with several small spines ( Fig. 1 and 2 ).............................................................................. T. maidica Catalano 4’. Male pygofer with ventral process curved dorsally; aedeagus and aedeagal processes with few small spines ( Fig. 15 and 19 )........................................................................................... T. affinis n. sp.