Two new species in the leafhopper genus Pythamus Melichar (Hemiptera: Cicadellidae: Evacanthinae) from China Author Wang, Yang Author Zhang, Yalin text Zootaxa 2015 4058 3 429 436 journal article 10.11646/zootaxa.4058.3.9 6abb05c5-b887-43fc-85e6-7faa24a19e61 1175-5326 235240 0A0957C9-949C-48D3-9F14-B3C35B238D66 Key to species of Pythamus Melichar, 1903 (males) 1. Crown with off-white or red lateral markings, median longitudinal carina without white spots ( Figs 3 , 13 ). Male pygofer posteri- orly narrowed along caudo-ventral margin ( Figs 9 , 18 ) ................................................................................................................... 2 -. Crown with white spots along median longitudinal carina, lacking white or red lateral markings ( Figs 22 , 31 ). Male pygofer broad, with rounded caudal margin ( Figs 27 , 35 ).............................................................................................................................. 3 2. Markings on crown off-white ( Fig. 3 ). Ventral margin of aedeagus gradually curved dorsad in lateral view ( Fig. 6 )....................... ........................................................................................................................................................................ P. hainanensis sp. nov. -. Markings on crown red ( Fig. 13 ). Ventral margin of aedeagus distinctly bent dorsad in lateral view ( Fig. 16 ) ...... P. rufus sp. nov. 3. Aedeagus without lateral processes but with lateral ridge, apex of shaft attenuated ...................................... P. dealbatus Melichar -. Aedeagus with short or long lateral processes; apex of shaft not attenuated ( Figs 24 , 33 ) .............................................................. 4 4. Crown with yellow spot on medial keel extending posteriorly to form arrow. Male pygofer with S-shaped ventral process ........ 5 -. Crown with round yellow spot on median keel not extended posterad ( Fig. 21 ). Male pygofer with straight ventral process ( Fig. 27 ) ................................................................................................................................................. P. biramosus Viraktamath & Webb 5. Aedeagal shaft with processes longer than maximum width of shaft in lateral view ( Fig. 33 ) .. P. bispinosus Viraktamath & Webb -. Aedeagal shaft with processes short, about half as long as maximum width of shaft in lateral view ............................................... ....................................................................................................................................................... P. montanus Viraktamath & Webb