Genus: Metrionella Spaeth, 1932
Metrionella Spaeth, 1932 e: 263 (type species: Coptocycla erratica Boheman, 1855, by original designation); Hincks, 1952: 342; Seeno and Wilcox, 1982: 179; Riley, 1986: 109; Borowiec, 1999 d: 379.
Species (12, species with colour photos marked with an asterisk):