Estas 22 especies son del género Systena:

• Systena bitaeniata (J. L. LeConte, 1859) ^{i c g}
• Systena blanda F. E. Melsheimer, 1847 ^{i c g b}
• Systena californica Blake, 1935 ^{i c g}
• Systena carri Blake, 1935 ^{i c g}
• Systena collaris Crotch, 1873 ^{i c g}
• Systena corni Schaeffer, 1932 ^{i c g b}
• Systena dimorpha Blake, 1933 ^{i c g}
• Systena elongata (Fabricius, 1798) ^{i c g b}
• Systena frontalis (Fabricius, 1801) ^{i c g b}
• Systena gracilenta Blake, 1933 ^{i c g b}
• Systena hudsonias (Forster, 1771) ^{i c g b}
• Systena laevis Blake, 1935 ^{i c g b}
• Systena laurentia Bechyné, 1955 ^g
• Systena lherminieri Bryant, 1942 ^g
• Systena marginalis (Illiger, 1807) ^{i c g b}
• Systena mitis (J. L. LeConte, 1858) ^{i c g}
• Systena pallicornis Schaeffer, 1906 ^{i c g b}
• Systena pallipes Schwarz, 1878 ^{i c g}
• Systena plicata Blatchley, 1921 ^{i c g}
• Systena sexnotata Fall, 1910 ^{i c g b}
• Systena s-littera (Linnaeus, 1758) ^g
• Systena variata Schaeffer, 1932 ^{i c g}

Data sources: i = ITIS,^[1]​ c = Catalogue of Life,^[2]​ g = GBIF,^[3]​ b = Bugguide.net^[4]​