Tricholeiochiton, Kloet & Hincks, 1944

Wells, Alice & De Moor, Ferdinand C., 2020, Hydroptilidae (Trichoptera) of Angola, a new genus, seven new species, and five new records, Zootaxa 4868 (4), pp. 495-514 : 506

Tricholeiochiton larvae

( Fig. 19 )

Material examined. ANGOLA: 1 cased larva, [CAW 740H], Moxico Province, Cuanavale River, Site 1—upstream of source lake (closer to lake), aquatic vegetation, handnet, -13.0882, 18.89298, 30/x/2016, I.S. Ferreira; 1 cased larva, [CAW 755M], Moxico Province, Cuanavale River , Site 3—upstream of source lake (further from lake), aquatic vegetation, handnet, -13.0935, 18.89627, 31/x/2016, I.S. Ferreira .

Remarks. The larvae clearly key to this genus, but collection of adults or pharate adults is required for confirmation of identity. Larvae of Tricholeiochiton generally live among aquatic macrophytes and, like other members of the subfamily Hydroptilinae , feed on filamentous green algae according to Marshall (1979).

Figures

FIGURES 10–19. Hydroptilidae, male genitalia. 10, 11, Hydroptila cruciata Ulmer, 1912 [CAW 797J]: 10, ventral; 11, dorsal. 12, 13, Hydroptila species [CAW 828F, 830E]: larvae in cases built with strands of filamentous algae. 14, 15, Hydroptila?cruciata [CAW 797J], larva in sand grain case and isolated larva. 16–18, Orthotrichia sp. [CAW 798S], mature fifth-instar cased larva: 16, dorsal; 17, ventral; 18, right lateral. 19, Tricholeiochiton sp. [CAW 755M], early fifth-instar cased larva; note characteristic long legs and tarsal claws.