Lindrothius Kurnakov, 1961

Schmidt, Joachim & Will, Kipling, 2020, A new subgenus for “ Acalathus ” advena (LeConte, 1846) and the challenge of defining Calathina based on morphological characters (Coleoptera, Carabidae Sphodrini), Zootaxa 4722 (4), pp. 326-338 : 333

Subgenus Lindrothius Kurnakov, 1961

Third antennomere without pubescence. Mentum tooth bifid. Pronotal laterobasal seta situated at margin or removed from side margin. Lateral bead of prosternal process present or absent. Parascutellar seta absent. Elytra glabrous, with three discal setae in the third interval; discal setae absent in the fifth and seventh intervals. Elytral microsculpture nearly isodiametric. Metepisternum short. Male protarsomeres dilated. Lateral grooves absent on metatarsomeres I-IV. Apical gonocoxite short, robust, with two ensiform setae at external margin; sensory pit of apical gonocoxite well developed. Aedeagus left side up in repose; median lobe apical disc present; apical hook of long paramere present; membranous lobe of short paramere present.