Key to the species of the genus Rhabdotalebra Young 1 Aedeagus with processes .............................................................................................................................................. 5 - Aedeagus without processes .........................................................................................................................................2 2 Pygofer with ventral processes bifurcate at apex..........................................................................................................3 - Pygofer with ventral processes not bifurcate................................................................................................................ 4 3 Aedeagal shaft with very broad base and narrow apex with two pair of anteapical teeth (Young, 1957: fig. 29, p. 234). Sternal abdominal apodemes longer attaining second conjunctivae ..................................... R. monrosi (Young) - Aedeagal shaft slender without teeth (Young, 1957: fig. 28, p. 230). Sternal abdominal apodemes shorter not attain- ing first conjunctiva ................................................................................................................... R. jamaicensis (Young) 4 Aedeagal shaft abruptly narrowed in apical third. Sternal abdominal apodemes longer attaining second conjunctivae (Young, 1957: fig. 28, p. 230). Female seventh sternum slightly convex ..................................... R. signata (McAtee) - Aedeagal shaft gradually tapering (Young, 1957: fig. 28, p. 230). Sternal abdominal apodemes shorter not attaining first conjunctiva. Female seventh sternum shallowly concave .................................................. R. octolineata (Baker) 5 Aedeagus with single process....................................................................................................................................... 6 - Aedeagus with apical pair of processes ........................................................................................................................ 7 6 Aedeagus with apical process directed ventro-caudally. Pygofer with shorter ventral process. Connective U-shaped. Sternal abdominal apodemes attaining first conjunctiva. Female seventh sternum with rounded median lobe (Fig.1). ........................................................................................................................................................ R. litoralensis n. sp. - Aedeagus with basal process directed dorsally. Pygofer with long ventral process. Connective transverse bar shaped. Sternal abdominal apodemes not attaining first conjunctiva. Female seventh sternum slightly concave (Fig.2) .......... .................................................................................................................................................................. R. flava n. sp. 7 Pygofer process absent. Connective U-shaped. Aedeagus processes dorsally (Young, 1957: fig. 29, p. 234). Forewing with hourglass-shaped white commissural marking ......................................... R. plummeri (Ruppel & DeLong) - Pygofer with processes (occasionally not differentially sclerotized). Connective bar shaped. Aedeagus processes ventrally or laterally. Markings of forewing otherwise................................................................................................. 8 8 Aedeagus processes recurved laterally. Gonopore terminal (Young, 1957: fig. 29, p. 234). Dorsum marked with inverted ´´T´´extending over pronotum, scutellum and basal half of forewings ...................... R. hambletoni (Young) - Aedeagus processes otherwise. Gonopore subapical. Markings of dorsum otherwise ................................................ 9 9 Aedeagus processes apressed to shaft (Young, 1957: fig. 30, p. 239). Sternal abdominal apodemes shorter, attaining first conjuntiva ................................................................................................................................... R. ornata (Young) - Aedeagal process extending laterad, not appressed to shaft. Sternal abdominal apodemes longer, attaining second or third conjunctivae (Young, 1957: fig. 30, p. 239) ............................................................................ R. brunnea (Oman)

Published as part of Catalano, María Inés, Paradell, Susana Liria & Lenicov, Ana María Marino Remes, 2010, Revision of the genus Rhabdotalebra Young (Hemiptera: Cicadellidae: Typhlocybinae: Alebrini) and description of two new species from Argentina, pp. 53-60 in Zootaxa 2601 on pages 54-55, DOI: 10.5281/zenodo.275964