Apatania crymophila McLachlan 1880

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

Apatania crymophila McLachlan 1880 .

The mesonotum shows distinct, large, diamond-shaped posterolateral spots ( Fig. 9A ). The surface of the protonum is covered by short thick secondary setae ( Fig. 9B ). The pairs of postocular primary setae on the head are shorter than the frontal setae; the posterior part of the head is light-colored ( Fig. 9B ). The length of the gula is greater than its width by a factor of more than 1.5 ( Fig. 9C ). The cases have a shape of slightly curly conic tubes ( Fig. 9D ) made of small mineral particles; ballast particles of larger size are often mounted laterally ( Fig. 9E ). The length of the cases does not exceed 1.5 cm ( Figs 9D, 9E ). The longest cases are typical of the latest larval instars, when cases are attached to rocks on the bottom; the size of the cases of younger, mobile larval instars does not exceed 1 cm. This species was the most numerous in the assemblages of Trichoptera on water moss.

Figures

FIGURE 9. Larva and case of Apatania crymophila McLachlan 1880. 9A, habitus, dorsal; 9B, head, right lateral; 9C, head, ventral; 9D, cases, right lateral and ventral; 9E, case with large mineral particles along lateral lines, dorsal. Scale bars 9A–9C = 1 mm; 9D, 9E = 3 mm.