Abstract:
Eighteen specics of the genus Antocha from Japan and its adjacent area are studied based on about 1 800 specimens. Holotypes of all Japanese species including junior synonyms are included. Keys to subgenera and to species are given with figures. A character matrix and intrageneric groups are also given. Antocha (Antocha) spicata Alexander, 1936 and A. (A.) brevinervis Alexander, 1936 (nec. Alexander, 1924) are synonymized under A. (A.) brevinervis ALEXANDER, 1924. Antocha (Antocha) subdentifera ALEXANDER, 1969 is synonymized under A. (A.) dentifera ALEXANDER, 1924. Females of the following 4 species are recorded and described for the first time: Antocha (Proantocha) uyei, Antocha (Antocha) bidigitata, A. (A.) sagana, A. (A.) subconfluenta. Female of A. (A.) gracillima is described for the first time.