FIGURES 20–25. Oxyethira spp., male genitalia. 20, 21, Oxyethira sechellensis Malicky 1993 in Hydroptilidae (Trichoptera) of Angola, a new genus, seven new species, and five new records

FIGURES 20–25. Oxyethira spp., male genitalia. 20, 21, Oxyethira sechellensis Malicky 1993 [CAW 804AA]: 20, ventral, 21, left lateral. 22–25, Oxyethira palisada sp. nov. [CAW 756T]: 22, ventral; 23, left lateral; 24, phallus, ventral; 25, inferior appendages and ventral plate, ventral. Abbreviations: IX, X = abdominal segment IX and tergite X; inf. app. = inferior appendage (paired); ph. = phallus; st. = strap on phallus; v. pl. = ventral plate.