A taxonomic revision of the genusMerizomena Chaudoir, 1873 (Coleoptera: Carabidae: Lebiini)

Taxonomical, geographical and nomenclatorial aspects of Merizomena Chaudoir, 1873 are discussed. The genus Merizomena is divided in to 2 subgenera Merizomena s.str. and Dichromenta subg. n. One new species is described: M. kabaki sp. n. (Tajikistan). M. schoenmanni (Kirschenhofer, 1994) is restored as a valid species. Five new synonyms are established: M. silvatica Mikhailov, 1977 syn. n. = M. tricolor (Gebler, 1845); M. klapperichi (Jedlička, 1956) syn. n. = M. grandinella (Semenov, 1889); M. afgana (Jedlička, 1956) syn. n. = M. grandinella; M. buettikeri (Mateu, 1986) syn. n. = M. castanea (Klug, 1832); M. yemenita (Mateu, 1986) syn. n. = M. castanea. A lectotype is designated for M. castanea (Klug, 1832). Distribution maps are added. An identification key is provided