FIGURES 22–27. Thremma anomalum McLachlan 1876, final instar larva after partial apolysis. 22 in Discriminatory matrix for the larvae of the European Thremma species (Trichoptera: Thremmatidae)

FIGURES 22–27. Thremma anomalum McLachlan 1876, final instar larva after partial apolysis. 22, head, right lateral. 23, pro- and mesonota, dorsal (p = pronotum; sa1–sa3 = sclerites of setal areas 1–3). 24, metathorax and abdominal segment I, dorsal (sa1–sa3 = setal areas 1–3). 25, prosternum, ventral (ae = anterolateral extension of prosternum; pe = posterolateral extension of prosternum; dotted circle = insertion of prosternal horn). 26, propleuron, right lateral (t = foretrochantin). 27, ventral protuberance of abdominal segment I, ventral (m = semicircular row of muscle attachment spots; dashed lines = borders of V-shaped membranous area). Scale bars: 0.5 mm (except Fig. 25: 0.2 mm).