Genus: Hilarocassis Spaeth, 1913
Hilarocassis Spaeth, 1913 b: 133 (type species: Cassida exclamationis Linnaeus, 1767, designated by Hincks, 1952: 335), 1914 g: 49; Hincks, 1952: 335; Seeno and Wilcox, 1982: 174; Borowiec, 1999 d: 115.
Species (10, species with colour photos marked with an asterisk):