Limnephilus politus McLachlan 1865

Konovalova, Daria A., Kislitsina, Nadezhda I. & Zotina, Tatiana A., 2023, Assemblages of Trichoptera larvae on water moss in the middle reaches of the Yenisei River (Siberia, Russia), Zootaxa 5306 (3), pp. 331-348 : 339

Limnephilus politus McLachlan 1865 .

The anterior 1/3 of the pronotum is much darker than the posterior 2/3 ( Figs 7A, 7C ). The gills consist of triple filaments ( Fig. 7B ). The hind femora bear secondary setae; there are no secondary setae on middle femora ( Figs 7D, 7E ). The cases are straight cylinders up to 2 cm long ( Fig. 7F ). The cases are mainly composed of parts of water moss stems and leaves with some parts of stems of vascular plants mounted at right angles to the longitudinal axis of the case. This species is minor in number, sporadically occurring in the Trichoptera assemblages on water moss.

Figures

FIGURE 7. Larva and case of Limnephilus politus McLachlan 1865. 7A, habitus, dorsal; 7B, anterior abdominal segments, ventral (dotted area:triple-filament gills); 7C, thoracic nota, dorsal (scale bar = 1 mm); 7D, 7E, Middle andhind legs, respectively, posterior faces (dashed oval: secondary setae); 7F, cases, right lateral and anterior. Scale bars 7A = 5 mm, 7B = 2 mm; 7C–7E = 1 mm; 7F = 2 cm.