Sericostomatidae

Key to the hitherto known final instar Sericostomatidae larvae of European Ecoregion 6 (Hellenic western Balkan region)

1 Pronotum with straight ventrolateral border (Fig. 3, dotted line); abdominal dorsum IX with 18–41 setae (Fig. 15 pds); abdominal pleura I each without black comma-like marking on lateral protuberance (Fig. 11, arrow)................................................................................................ Schizopelex huettingeri Malicky 1974

- Pronotum with convex ventrolateral border (Figs. 18, 19, dotted curvature); abdominal dorsum IX with either 18–41 or 48–74 setae (Figs. 21, 22); abdominal pleura I each with or without black comma-like marking on lateral protuberance (Fig. 20, arrow)..............................................................................................2

2 Abdominal dorsum IX with 18–41 setae (Fig. 21); abdominal pleura I each with black comma-like marking on lateral protuberance (Fig. 20, arrow)................................................. Sericostoma flavicorne Schneider 1845 Sericostoma personatum (Kirby & Spence 1826) ................................................. (not separable)

- Abdominal dorsum IX with 48–74 setae (Fig. 22); abdominal pleura I without black comma-like markings on lateral protuberances (as in Fig. 11, arrow).................................................. Oecismus monedula (Hagen 1859)