Tachys is a genus of beetles in the family Carabidae, containing the following species: \n* Tachys abruptus Darlington, 1934 \n* Tachys aeneipennis Motschulsky, 1862 \n* Tachys aequinoctialis (Motschulsky, 1855) \n* Tachys albipes Leconte, 1863 \n* Tachys algiricus (Lucas, 1846) \n* Tachys ambulatus Darlington, 1962 \n* Tachys androyanus (Jeannel, 1946) \n* Tachys angustulus Reitter, 1899 \n* Tachys apex Darlington, 1962 \n* Tachys arcanicola Blackburn, 1878 \n* Tachys arculus Fauvel, 1882 \n* Tachys argentinicus Csiki, 1928 \n* Tachys artensis Montrouzier, 1860 \n* Tachys asemus (Basilewsky, 1968) \n* Tachys atamuradovi Kryzhanovskij & Mikhailov, 1987 \n* Tachys atomarius Wollaston, 1867 \n* Tachys atomus Blackburn, 1878 \n* Tachys atratus A. Costa, 1883 \n* Tachys atridermis Sloane, 1921