Trymosternus is a genus of beetles in the family Carabidae, containing the following species: \n* Trymosternus acutangulus Mateu, 1963 \n* Trymosternus ariasi Bolivar Y Pieltain, 1914 \n* Trymosternus bolivari Mateu, 1952 \n* Trymosternus cobosi Mateu, 1952 \n* Trymosternus colombati Antoine, 1934 \n* Trymosternus cordatus (Rambur, 1837) \n* Trymosternus dilaticollis (Lucas, 1846) \n* Trymosternus negrei Mateu, 1952 \n* Trymosternus onychinus (Dejean, 1825) \n* Trymosternus refleximargo Chaudoir, 1873 \n* Trymosternus truncatus (Rambur, 1837) \n* Trymosternus urcitanus Mateu, 1963