Tychius astragali Becker, 1862 group

7. Tychius hauseri Faust, 1889

8. Tychius tectus LeConte, 1876

9. Tychius oriens A. Hoffmann, 1964

10. Tychius thompsoni Caldara, 1990

11. Tychius perrinae Caldara, 1990