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.