Dicosmoecus palatus McLachlan 1872

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

Dicosmoecus palatus McLachlan 1872 .

The protonum is uniformly grayish brown; the head and the legs are colored similarly ( Fig. 4A ). The spicules along the anterior edge of the pronotum are very short; relatively long setae are also present ( Fig. 4B ). Each tibia bears several pairs of light-colored spiked setae along the ventral edge ( Fig. 4C ). The cases are bulky, straight or very slightly curved tubes, constructed from relatively large pebbles; the dorsal part of the case is oval; the length of the case reaches 2.5 cm ( Fig. 4D ). Single individuals of this species regularly occurred in the assemblages of Trichoptera on water moss.

Figures

FIGURE 4. Larva and case of Dicosmoecus palatus McLachlan 1872. 4A, habitus, dorsal; 4B, pronotum, dorsal (dotted ovals: spiked setae); 4C, left midleg, posterior face (arrows: spiked setae); 4D, cases, ventral, dorsal, and left lateral, respectively. Scale bars 4A = 5 mm; 4B, 4C = 2 mm; 4D = 2 cm.