CylindrarctusCylindrarctus is a genus of ant-loving beetles in the family Staphylinidae. There are about 10 described species in Cylindrarctus.SpeciesThese 10 species belong to the genus Cylindrarctus:Cylindrarctus americanus Schaufuss, 1887Cylindrarctus bicornis Chandler, 1988Cylindrarctus crinifer Casey, 1894Cylindrarctus fluvialis Chandler, 1988Cylindrarctus longipalpis Cylindrarctus ludovicianus Cylindrarctus obrieni Chandler, 1988Cylindrarctus onaga Chandler, 1988Cylindrarctus orientalis Chandler, 1988Cylindrarctus seminole Chandler, 1999