Trephionus is a genus of beetles in the family Carabidae, containing the following species: \n* Trephionus babai Habu, 1978 \n* Trephionus chujoi Habu, 1961 \n* Trephionus igai Ueno, 1955 \n* Trephionus karosai Ueno, 1955 \n* Trephionus kinoshitai Habu, 1954 \n* Trephionus kyushuensis Habu, 1978 \n* Trephionus microphthalmus Ueno, 1955 \n* Trephionus mikii Habu, 1966 \n* Trephionus nikkoensis Bates, 1883 \n* Trephionus obscurus Ueno, 1955 \n* Trephionus shibataianus Habu, 1978 \n* Trephionus sordidatus Habu, 1954 \n* Trephionus subcavicola Ueno, 1955 \n* Trephionus takakurai Habu, 1954