Cacopsylla sangjaei (Kwon, 1983)

(Figs. 50−52)

Psylla (Hetatopsylla) sangjaei KWON, 1983: 72. Cacopsylla sangjaei; PARK, 1996: 272.

Cacopsylla idiocrataegi LI, 1992B: 91, syn. nov.

Material examined. South Korea (GG, GW) (NHMB, SNU).

Host plant. Crataegus pinnatifida Bunge (Rosaceae), confirmed by the presence of immatures. Comments. Cacopsylla sangjaei develops on Crataegus pinnatifida on which it is commonly found. The description of C. idiocrataegi by Li (1992b), that develops also on Crataegus pinnatifida, suggests that this species is conspecific with C. sangjaei . The two taxa are, therefore, synonymised.