FIGURES 34–38. Thremma gallicum McLachlan 1880, final instar larva. 34 in Discriminatory matrix for the larvae of the European Thremma species (Trichoptera: Thremmatidae)

FIGURES 34–38. Thremma gallicum McLachlan 1880, final instar larva. 34, head and pronotum, dorsal; 35, mesonotum, dorsal (sa1–sa3 = sclerites of setal areas 1–3). 36, propleuron, right lateral (m = epimeron; s = episternum; t = foretrochantin). 37, ventral protuberance of abdominal segment I, ventral (m = semicircular row of muscle attachment spots; vs = ventral sclerite). 38, abdominal segments I–II, right lateral (dg = dorsal gill; sa3 = setal area 3; sf = spinule field; arrow = white patch within spinule field on lateral protuberance). Scale bars: 0.5 mm.