Review Of The Genus Pseudocoruncanius Meng, Qin Et Wang, 2020 (Hemiptera: Fulgoromorpha: Issidae), With The Description Of A New Species From Vietnam Author Gnezdilov, Vladimir M. text Acta Zoologica Academiae Scientiarum Hungaricae 2022 2022-10-28 68 4 305 312 http://dx.doi.org/10.17109/azh.68.4.305.2022 journal article 10.17109/AZH.68.4.305.2022 c36c53bd-4ba4-468c-8f75-657c58af10c9 2064-2474 7399519 KEY TO SPECIES OF PSEUDOCORUNCANIUS 1 Metope (frons) yellow above clypeus. Forewings with white yellowish costal margin, without transverse yellowish white stripe between M and CuA ( ZHANG et al. 2020 , Pl. 26 a–c). Anterior margin of coryphe (vertex) angularly produced ( ZHANG et al. 2020 , Fig. 181a, Pl. 26c). Male anal tube distinctly narrowing apically into a pointed apex (in dorsal view) ( ZHANG et al. 2020 , Fig. 181e). Total length: 7.5–8.1 mm . China ( Hainan Island) P. flavostriatus Meng, Qin et Wang, 2020 – Metope almost entirely dark brown to black ( Fig. 3 ). Forewings with a light brown costal margin and with transverse white yellowish stripe between M and CuA ( Figs 1, 2 ). Anterior margin of coryphe (vertex) weakly convex ( Fig. 2 ). Male anal tube slightly narrowing apically into a wide rounded apex (in dorsal view) ( Fig. 10 ). Total length: 6.0 mm. Northern Vietnam P. nigrifrons sp. n.