Membracidae of Gabon: the genus Hamma Buckton, 1905 (Hemiptera: Auchenorrhyncha) with description of three new species Author Loudit, Sandrine Mariela Bayendi Author Durante, Antonio Author Susini, Antonio text Zootaxa 2014 3838 3 323 346 journal article 10.11646/zootaxa.3838.3.5 fea14af6-3b11-4f5c-9a72-046eafd98791 1175-5326 252079 CDE10850-BA34-4C3B-924D-16A90AD521CD Key to the species of the genus Hamma 1 Posterior pronotal process without terminal spine............................................................ 2 - Posterior pronotal process with a terminal spine............................................................. 3 2 Pronotum with reddish brown blunt tubercles................................................... franciscae n. sp. - Pronotum with black thorn-like tubercles.......................................................... carlini n. sp. 3 Suprahumeral horns prominent, ending in a thorn............................................................ 4 - Suprahumeral horns absent or not prominent, apex blunt...................................................... 14 4 Posterior pronotal process quite slender in lateral view without well evident nodes.................................. 5 - Posterior pronotal process in lateral view with well evident nodes............................................... 6 5 Suprahumeral horns globose (better visible in frontal view)............................................ cinnameus - Suprahumeral horns conical....................................................................... capeneri 6 Suprahumeral horns very large, posterior process heart-shaped in dorsal view............................... fabulosum - Suprahumeral horns smaller, posterior process not heart-shaped in dorsal view..................................... 7 7 Pronotum with reddish tubercles.................................................................... nodosum - Pronotum with black tubercles........................................................................... 8 8 Suprahumeral horns upturned.................................................................... brevicornis - Suprahumeral horns laterad.............................................................................. 9 9 Posterior process with terminal node large and clearly rounded in dorsal view..................................... 10 - Posterior process with terminal node quite slender, not rounded in dorsal view.............................. robustum 10 Suprahumeral horns about half as long as pronotal width (dorsal view).......................................... 11 - Suprahumeral horns about 1/4 to 1/3 as long as pronotal width (dorsal view)...................................... 13 11 Posterior process V-shaped in lateral view between second and third node........................................ 12 - Posterior process straight in lateral view between second and third node..................................... rectum 12 Suprahumeral horns straight in dorsal view........................................................... grahami - Suprahumeral horns curved backwards in dorsal view..................................................... heimi 13 Posterior process shorter than tegmina, suprahumeral horns with short, stout terminal spine............... boulardi n. sp. - Posterior process as long as the tegmina, suprahumeral horns with slender terminal spine...................... spinosum 14 Posterior process in dorsal view with large terminal node............................................... ugandensis - Posterior process in dorsal view with very small terminal node................................................. 15 15 Posterior process slender in lateral view................................................................... 16 - Posterior process quite strong in lateral view......................................................... pattersoni 16 Flanks of the pronotal helmet and thoracic pleurae covered by white pilosity; posterior process with lateral carinae... simplex - No presence of white pilosity; posterior process without lateral carinae................................... pygmaeum