On the taxonomy of Korean jumping plant-lice (Hemiptera: Psylloidea) Author Cho, Geonho Author Burckhardt, Daniel Author Lee, Seunghwan text Zootaxa 2017 2017-03-07 4238 4 531 561 journal article 31697 10.11646/zootaxa.4238.4.3 eef4aa32-6fc9-44a7-b1df-ef1b6691fa26 1175-5326 1039072 20A7B437-D92C-4874-AB01-74FFD9153194 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.