Key to separate the genera Perissana and Raunolina

1 Metope with median carina not reaching its upper margin (GNEZDILOV & WILSON 2006: Fig. 1b). Fore wings with many transverse veins (reticulate venation) (GNEZDILOV & WILSON 2006: Fig. 1a); CuP distinct in proximal half of the wing. Gonoplacs rounded, with dorso-caudal angles in lateral view not protruding above apex of anal tube (GNEZDILOV & WILSON 2006: Fig. 5). ................................................................ Perissana Metcalf, 1952

– Metope with median carina reaching its upper margin (Fig. 7). Fore wings only with longitudinal veins (Figs 1–4, 8); CuP indistinct. Gonoplacs triangular, with dorso-caudal angles in lateral view clearly protruding above apex of anal tube (Figs 10, 12). ............... ............................................................. Raunolina Gnezdilov & Wilson, 2006, stat. nov.