Trephionus
Trephionus is a genus of ground beetles in the family Carabidae. There are about 19 described species in Trephionus, found in Japan. Five of these were new species described in 2018.
Description
All the species are reddish brown to black in color with a shiny surface. Mouthpart appendages and antennae are yellowish to reddish brown, and the legs are light to blackish brown. There are no hind wings. The eyes are less convex, the pronotum is moderately convex, and the elytra are oblong and moderately convex.
Species
Trephionus abiba Sasakawa & Itô, 2018Trephionus babai Habu, 1978Trephionus bifidilobatus Sasakawa & Itô, 2018Trephionus chujoi Habu, 1961Trephionus cylindriphallus Sasakawa, 2018Trephionus igai Ueno, 1955Trephionus inexpectatus Sasakawa, 2018Trephionus karosai Ueno, 1955Trephionus kinoshitai Habu, 1954Trephionus kyushuensis Habu, 1978Trephionus microphthalmus Ueno, 1955Trephionus mikii Habu, 1966Trephionus nikkoensis Bates, 1883Trephionus niumontanus Sasakawa, 2018Trephionus obscurus Ueno, 1955Trephionus shibataianus Habu, 1978Trephionus sordidatus Habu, 1954Trephionus subcavicola Ueno, 1955Trephionus takakurai Habu, 1954