"The following synonyms are proposed: Chlaenius circumductus A. Morawitz, 1862 = Chlaenius lineellus Motschulsky, 1859, syn. nov.; Chlaenius semipurpureus Motschulsky, 1865 = Chlaenius posticalis Motschulsky, 1854, syn. nov."

Notes on the systematics and nomenclature of some taxa of the genus Chlaenius Bonelli, 1810 (Coleoptera, Carabidae) from the Far East
https://www.mapress.com/zt/article/view/zootaxa.5222.2.7