13–15 Adicella syriaca Ulmer, 1907, final instar larva: 13 Tip of abdomen, right lateral (fl= forked lamellae on segment VIII; vs= ventral setae on segment IX) 14 Tip of abdomen, ventral 15 Larval case, right lateral 16 Final instar larvae in their cases. a Adicella filicornis (Pictet, 1834) b Adicella reducta (McLachlan, 1865) 17–18 Lateral sclerites on abdominal segment I of fifth instar larvae, right lateral view: 17 Adicella reducta (McLachlan, 1865) 18 Adicella cremisa Malicky, 1972 19 Adicella filicornis (Pictet, 1834), final instar larva. Tip of abdomen, dorsal. Scale bars: 0.5 mm (except Figs 15, 17: 1 mm).